OFFSET
0,10
LINKS
Seiichi Manyama, Table of n, a(n) for n = 0..10000
FORMULA
G.f.: Product_{k>0} (1 - x^k)^A056924(k).
MATHEMATICA
nmax = 100; CoefficientList[Series[Product[(1 - x^k)^Floor[DivisorSigma[0, k]/2], {k, 1, nmax}], {x, 0, nmax}], x] (* Vaclav Kotesovec, Nov 03 2018 *)
CROSSREFS
KEYWORD
sign,look
AUTHOR
Seiichi Manyama, Nov 03 2018
STATUS
approved