分两种数据:
x1+x2+x3=10^N-1,x1+x2+x3=10^N+1奇数哥德巴赫数统计值:如,N=2,手工统计如下(不知有无统计误差)
x1+x2+x3=99:
X1=3, x2=7, x3=89:
N6 3,7,89),(3,13,83),(3,17,79),(3,23,73),(3,29,67),(3,43,53),
N5 5,5,89),(5,11,83),(5,23,71),(5,41,53),(5,47,47),
N3 7,13,79),(7,19,73),(7,31,61),
N4:(11,17,71),(11,29,59),(11,29,59),(11,41,47),
N3:(13,13,73),(13,19,67),(13,43,43),
N3:(17,23,59),(17,29,53),(17,41,41),
N2:(19,19,61),(19,37,43),
N2:(23,23,53),(23,29,47),
N1:(29,29,41),
N1:(31,31,37)
6+5+3+4+2*3+2*2+2*1=30
x1+x2+x3=101=p:
X1=3, x2=19, x3=79:
N3:(3,19,79),(3,31,67),(3,37,61),
N6:(5,7,89),(5,13,83),(5,17,79),(5,29,67),(5,37,59),(5,43,53),
N4:(7,11,83),(7,23,71),(7,41,53),(7,47,47),
N8:(11,11,79),(11,17,73),(11,19,71),(11,23,67),(11,29,61),(11,31,59)(11,37,53),(11,43,47),
N3:(13,17,71),(13,29,59),(13,41,47),
N5:(17,17,67),(17,23,61),(17,31,53),(17,37,47),(17,41,43),
N3:(19,23,59),(19,29,53),(19,41,41),
N2:(23,31,47),(23,37,41),
N2:(29,29,43),(29,31,41),
3+6+4+8+3+5+3+2*2=36
请网友编程统计,更大N值的奇数哥德巴赫数统计值,越大越好,谢谢!
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