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我们用三生素数66(P,P+6,P+12),这里的P及后边两个P的数学式都是素数,这样的三生素数可以用两个素数之和表示全体偶数,在小范围内存在有限个反例,这对整个偶数来说是微不足道的,如果不想有反例,我们可以把起始值设大点,这并不影响它中的l两个素数可以表示除此以外的全体偶数,因为有限个不足影响到它的数学意义。以下是统计信息,公式及论述过程以后贴出。
范围 条件 统计 每段 占比
30000 <30000 1726 1726 0.808222222
60000 <60000 2884 1158 0.871333333
90000 <90000 3852 968 0.892444444
120000 <120000 4587 735 0.918333333
150000 <150000 5228 641 0.928777778
180000 <180000 5831 603 0.933
210000 <210000 6274 443 0.950777778
240000 <240000 6718 444 0.950666667
270000 <270000 7076 358 0.960222222
300000 <300000 7386 310 0.965555556
330000 <330000 7698 312 0.965333333
360000 <360000 7935 237 0.973666667
390000 <390000 8163 228 0.974666667
420000 <420000 8360 197 0.978111111
450000 <450000 8539 179 0.980111111
480000 <480000 8722 183 0.979666667
510000 <510000 8891 169 0.981222222
540000 <540000 9045 154 0.982888889
570000 <570000 9180 135 0.985
600000 <600000 9324 144 0.984
630000 <630000 9438 114 0.987333333
660000 <660000 9551 113 0.987444444
690000 <690000 9644 93 0.989666667
720000 <720000 9751 107 0.988111111
750000 <750000 9846 95 0.989444444
780000 <780000 9913 67 0.992555556
810000 <810000 10009 96 0.989333333
840000 <840000 10065 56 0.993777778
870000 <870000 10127 62 0.993111111
900000 <900000 10179 52 0.994222222
930000 <930000 10235 56 0.993777778
960000 <960000 10307 72 0.992
990000 <990000 10358 51 0.994333333
1020000 <1020000 10417 59 0.993444444
1050000 <1050000 10471 54 0.994
1080000 <1080000 10514 43 0.995222222
1110000 <1110000 10561 47 0.994777778
1140000 <1140000 10620 59 0.993444444
1170000 <1170000 10671 51 0.994333333
1200000 <1200000 10718 47 0.994777778
1230000 <1230000 10753 35 0.996111111
1260000 <1260000 10790 37 0.995888889
1290000 <1290000 10828 38 0.995777778
1320000 <1320000 10860 32 0.996444444
1350000 <1350000 10887 27 0.997
1380000 <1380000 10910 23 0.997444444
1410000 <1410000 10931 21 0.997666667
1440000 <1440000 10961 30 0.996666667
1470000 <1470000 10982 21 0.997666667
1500000 <1500000 11004 22 0.997555556
1530000 <1530000 11020 16 0.998222222
1560000 <1560000 11045 25 0.997222222
1590000 <1590000 11065 20 0.997777778
1620000 <1620000 11090 25 0.997222222
1650000 <1650000 11110 20 0.997777778
1680000 <1680000 11136 26 0.997111111
1710000 <1710000 11153 17 0.998111111
1740000 <1740000 11175 22 0.997555556
1770000 <1770000 11184 9 0.999
1800000 <1800000 11202 18 0.998
1830000 <1830000 11220 18 0.998
1860000 <1860000 11234 14 0.998444444
1890000 <1890000 11250 16 0.998222222
1920000 <1920000 11267 17 0.998111111
1950000 <1950000 11285 18 0.998
1980000 <1980000 11301 16 0.998222222
2010000 <2010000 11315 14 0.998444444
2040000 <2040000 11333 18 0.998
2070000 <2070000 11345 12 0.998666667
2100000 <2100000 11358 13 0.998555556
2130000 <2130000 11371 13 0.998555556
2160000 <2160000 11384 13 0.998555556
2190000 <2190000 11393 9 0.999
2220000 <2220000 11401 8 0.999111111
2250000 <2250000 11412 11 0.998777778
2280000 <2280000 11423 11 0.998777778
2310000 <2310000 11440 17 0.998111111
2340000 <2340000 11453 13 0.998555556
2370000 <2370000 11465 12 0.998666667
2400000 <2400000 11474 9 0.999
2430000 <2430000 11485 11 0.998777778
2460000 <2460000 11500 15 0.998333333
2490000 <2490000 11509 9 0.999
2520000 <2520000 11525 16 0.998222222
2550000 <2550000 11536 11 0.998777778
2580000 <2580000 11544 8 0.999111111
2610000 <2610000 11551 7 0.999222222
2640000 <2640000 11561 10 0.998888889
2670000 <2670000 11572 11 0.998777778
2700000 <2700000 11581 9 0.999
2730000 <2730000 11585 4 0.999555556
2760000 <2760000 11591 6 0.999333333
2790000 <2790000 11593 2 0.999777778
2820000 <2820000 11605 12 0.998666667
2850000 <2850000 11611 6 0.999333333
2880000 <2880000 11618 7 0.999222222
2910000 <2910000 11627 9 0.999
2940000 <2940000 11636 9 0.999
2970000 <2970000 11639 3 0.999666667
3000000 <3000000 11644 5 0.999444444
3030000 <3030000 11649 5 0.999444444
3060000 <3060000 11655 6 0.999333333
3090000 <3090000 11663 8 0.999111111
3120000 <3120000 11668 5 0.999444444
3150000 <3150000 11676 8 0.999111111
3180000 <3180000 11684 8 0.999111111
3210000 <3210000 11690 6 0.999333333
3240000 <3240000 11699 9 0.999
3270000 <3270000 11700 1 0.999888889
3300000 <3300000 11706 6 0.999333333
3330000 <3330000 11713 7 0.999222222
3360000 <3360000 11720 7 0.999222222
3390000 <3390000 11724 4 0.999555556
3420000 <3420000 11725 1 0.999888889
3450000 <3450000 11727 2 0.999777778
3480000 <3480000 11729 2 0.999777778
3510000 <3510000 11736 7 0.999222222
3540000 <3540000 11743 7 0.999222222
3570000 <3570000 11748 5 0.999444444
3600000 <3600000 11751 3 0.999666667
3630000 <3630000 11758 7 0.999222222
3660000 <3660000 11763 5 0.999444444
3690000 <3690000 11765 2 0.999777778
3720000 <3720000 11767 2 0.999777778
3750000 <3750000 11768 1 0.999888889
3780000 <3780000 11770 2 0.999777778
3810000 <3810000 11773 3 0.999666667
3840000 <3840000 11778 5 0.999444444
3870000 <3870000 11780 2 0.999777778
3900000 <3900000 11783 3 0.999666667
3930000 <3930000 11785 2 0.999777778
3960000 <3960000 11789 4 0.999555556
3990000 <3990000 11791 2 0.999777778
4020000 <4020000 11796 5 0.999444444
4050000 <4050000 11801 5 0.999444444
4080000 <4080000 11802 1 0.999888889
4110000 <4110000 11807 5 0.999444444
4140000 <4140000 11809 2 0.999777778
4170000 <4170000 11813 4 0.999555556
4200000 <4200000 11814 1 0.999888889
4230000 <4230000 11815 1 0.999888889
4260000 <4260000 11819 4 0.999555556
4290000 <4290000 11821 2 0.999777778
4320000 <4320000 11822 1 0.999888889
4350000 <4350000 11823 1 0.999888889
4380000 <4380000 11826 3 0.999666667
4410000 <4410000 11828 2 0.999777778
4440000 <4440000 11830 2 0.999777778
4470000 <4470000 11831 1 0.999888889
4500000 <4500000 11832 1 0.999888889
4530000 <4530000 11833 1 0.999888889
4560000 <4560000 11834 1 0.999888889
4590000 <4590000 11837 3 0.999666667
4620000 <4620000 11839 2 0.999777778
4650000 <4650000 11840 1 0.999888889
4680000 <4680000 11840 0 1
4710000 <4710000 11842 2 0.999777778
4740000 <4740000 11845 3 0.999666667
4770000 <4770000 11849 4 0.999555556
4800000 <4800000 11855 6 0.999333333
4830000 <4830000 11855 0 1
4860000 <4860000 11859 4 0.999555556
4890000 <4890000 11860 1 0.999888889
4920000 <4920000 11861 1 0.999888889
4950000 <4950000 11863 2 0.999777778
4980000 <4980000 11866 3 0.999666667
5010000 <5010000 11868 2 0.999777778
5040000 <5040000 11869 1 0.999888889
5070000 <5070000 11869 0 1
5100000 <5100000 11872 3 0.999666667
5130000 <5130000 11873 1 0.999888889
5160000 <5160000 11873 0 1
5190000 <5190000 11876 3 0.999666667
5220000 <5220000 11877 1 0.999888889
5250000 <5250000 11877 0 1
5280000 <5280000 11877 0 1
5310000 <5310000 11878 1 0.999888889
5340000 <5340000 11880 2 0.999777778
5370000 <5370000 11880 0 1
5400000 <5400000 11883 3 0.999666667
5430000 <5430000 11883 0 1
5460000 <5460000 11883 0 1
5490000 <5490000 11884 1 0.999888889
5520000 <5520000 11885 1 0.999888889
5550000 <5550000 11886 1 0.999888889
5580000 <5580000 11886 0 1
5610000 <5610000 11890 4 0.999555556
5640000 <5640000 11890 0 1
5670000 <5670000 11890 0 1
5700000 <5700000 11891 1 0.999888889
5730000 <5730000 11893 2 0.999777778
5760000 <5760000 11893 0 1
5790000 <5790000 11896 3 0.999666667
5820000 <5820000 11897 1 0.999888889
5850000 <5850000 11897 0 1
5880000 <5880000 11898 1 0.999888889
5910000 <5910000 11898 0 1
5940000 <5940000 11898 0 1
5970000 <5970000 11899 1 0.999888889
6000000 <6000000 11900 1 0.999888889
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