[这个贴子最后由ysr在 2013/08/02 11:40am 第 2 次编辑]
如下数列的前44项中有11对孪生素数,X=N(N+1)-5,Y1=4X+1,Y2=4X+3,
N X Y1 Y2
1,-3,-11,-9
2,1,5,7
3,7,29,31
4,15,61,63
5,25,101,103
6,37,149,151
7,51,205,207
8,67,269,271
9,85,341,343
10,105,421,423
11,127,509,511
12,151,605,607
13,177,709,711
14,205,821,823
15,235,941,943
16,267,1069,1071
17,301,1205,1207
18,337,1349,1351
19,375,1501,1503
20,415,1661,1663
21,457,1829,1831
22,501,2005,2007
23,547,2189,2191
24,595,2381,2383
25,645,2581,2583
26,697,2789,2791
27,751,3005,3007
28,807,3229,3231
29,865,3461,3463
30,925,3701,3703
31,987,3949,3951
32,1051,4205,4207
33,1117,4469,4471
34,1185,4741,4743
35,1255,5021,5023
36,1327,5309,5311
37,1401,5605,5607
38,1477,5909,5911
39,1555,6221,6223
40,1635,6541,6543
41,1717,6869,6871
42,1801,7205,7207
43,1887,7549,7551
44,1975,7901,7903
45,2065,8261,8263
46,2157,8629,8631
47,2251,9005,9007
48,2347,9389,9391
49,2445,9781,9783
50,2545,10181,10183
51,2647,10589,10591
52,2751,11005,11007
53,2857,11429,11431
54,2965,11861,11863
55,3075,12301,12303
56,3187,12749,12751
57,3301,13205,13207
58,3417,13669,13671
59,3535,14141,14143
60,3655,14621,14623
61,3777,15109,15111
62,3901,15605,15607
63,4027,16109,16111
64,4155,16621,16623
65,4285,17141,17143
66,4417,17669,17671
67,4551,18205,18207
68,4687,18749,18751
69,4825,19301,19303
70,4965,19861,19863
,-5,-19,-17
,-5,-19,-17
,-5,-19,-17
,-5,-19,-17
,-5,-19,-17
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