素数筛法
2-1=1={1}
1+0=1
1+2=3
1+4=5
{1,3,5}-3*{1,3,5}={1,5}
1*(3-1)=2={1,5}
1+0=1
1+6=7
1+12=13
1+18=19
1+24=25
5+0=5
5+6=11
5+12=17
5+18=23
5+24=29
{1,5,7,11,13,17,19,23,25,29}-5*{1,5,7,11,13,17,19,23,25,29}={1,7,11,13,17,19,23,29}
2*(5-1)=8={1,7,11,13,17,19,23,29}
1+0=1
1+30=31
1+60=61
1+90=91
1+120=121
1+150=151
1+180=181
7+0=7
7+30=37
7+60=67
7+90=97
7+120=127
7+150=151
7+180=187
11+0=11
11+30=41
11+60=71
11+90=101
11+120=131
11+150=161
11+180=191
13+0=13
13+30=43
13+60=73
13+90=103
13+120=133
13+150=163
13+180=193
17+0=17
17+30=47
17+60=77
17+90=107
17+120=137
17+150=167
17+180=197
19+0=19
19+30=49
19+60=79
19+90=109
19+120=139
19+150=169
19+180=199
23+0=23
23+30=53
23+60=83
23+90=113
23+120=143
23+150=173
23+180=203
29+0=29
29+30=59
29+60=89
29+90=119
29+120=149
29+150=179
29+180=209
命以上7*8=56个数为{ A =56}
{ A =56}-7*{ A =56}=
=+{1,7,11,13,17,19,23,29}-7*{1,7,11,13,17,19,23,29}
+{31,37,41,43,47,49,53,59}-7*{31,37,41,43,47,49,53,59}
+{61,67,71,73,77,79,83,89}-7*{61,67,71,73,77,79,83,89}
+{91,97,101,103,107,109,113,119}-7*{91,97,101,103,107,109,113,119}
+{121,127,131,133,137,139,143,149}-7*{121,127,131,133,137,139,143,149}
+{151,157,161,163,167,169,173,179}-7*{151,157,161,163,167,169,173,179}
+{181,187,191,193,197,199,203,209}-7*{181,187,191,193,197,199,203,209}=
=+{1,11,13,17,19,23,29}
+{31,37,41,43,47,53,59}
+{61,67,71,73,79,83,89}
+{97,101,103,107,109,113}
+{121,127,131,137,139,143,149}
+{151,157,163,167,169,173,179}
+{181,187,191,193,197,199,209}
以后类推.
作者施承忠 2010.4.13
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