来自在线整数百科全书的问候语!http://oeis.org/ Search: id:a300977 Showing 1-1 of 1 %I A300977 %S A300977 1,1,1,1,1,2,1,3,1,1,1,6,1,9,2,1,1,17,1,23,1,2,4,40,1,2,5,3,1,87,1, %T A300977 111,2,5,10,7,1,219,14,9,1,336,1,413,3,1,26,614,1,4,3,30,4,1083,2,42, %U A300977 1,51,66,1850,1,2198,91,2,1,95,2,3630,9,130,2,5007,1,5861,209,3,11,232,3,9282,1 %N A300977 Number of partitions of n为具有与N.%HAA3097 Alois P. Heinz相同的除数的部分;n,a(n)n=0…1000的表%H A300 997与分区相关的序列的索引条目乘积{d(k)=D(n)} 1 /(1 -x^ k).[%eaa90077a(27)=3,因为我们有[27,[21, 6 ]和[15, 6, 6 ] ],其中27, 21, 15和6是4因子。%F A300 97A(n)=[x^ n] %p A300977 b(n, i-1)+`if`(tau(i)=k, b(n-i, min(i, n-i)), 0))) %p A300977 end: b(m$2) %p A300977 end: %p A300977 seq(a(n), n=0..100); # _Alois P. Heinz_, Mar 17 2018 %t A300977 Table[SeriesCoefficient[Product[1/(1 - Boole[DivisorSigma[0, k] == DivisorSigma[0, n]] x^k), {k, 1, n}], {x, 0, n}], {n, 0, 80}] %Y A300977 Cf. A000005, A300 997、A300 99、A300 980、A300 982A、A300 983.K %A300 97 7、NON %O O A300 97 7 0、6‰A A300 97 7Mi ILYA GutkOVSKYYY,3月17日2018‰的内容在OEIS最终用户许可协议下可用:HTTP:/OEIS.Org/许可证