cp's OEIS Frontend

This is a front-end for the Online Encyclopedia of Integer Sequences, made by Christian Perfect. The idea is to provide OEIS entries in non-ancient HTML, and then to think about how they're presented visually. The source code is on GitHub.

A140312 Number of distinct values of Product_{p is in P} (m(p,P)+1) where m(p,P) is the multiplicity of part p in partition P, when P ranges over all partitions of n.

Original entry on oeis.org

1, 2, 3, 5, 5, 10, 10, 16, 18, 24, 27, 41, 42, 54, 63, 82, 88, 114, 123, 153, 168, 205, 224, 278, 296, 356, 388, 462, 497, 587, 634, 746, 795, 934, 987, 1159, 1241, 1427, 1521, 1750, 1862, 2120, 2270, 2578, 2726, 3108, 3291, 3723, 3937, 4425, 4686, 5278, 5569, 6208, 6552, 7328, 7720, 8609, 9072
Offset: 1

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Author

Vladeta Jovovic, May 25 2008

Keywords

Crossrefs

Programs

  • PARI
    a(n)=my(v=List());forpart(P=n,listput(v,prod(i=1,#P, sum(j=1,#P, P[j]==P[i])+1))); #vecsort(Vec(v),,8) \\ Charles R Greathouse IV, Jun 18 2013

Extensions

More terms from Max Alekseyev, Aug 17 2013