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A267004
Expansion of Product_{k>=1} ((1 + k*x^k) / (1 - x^k)).
7
1, 2, 5, 12, 24, 50, 97, 184, 331, 606, 1061, 1834, 3125, 5228, 8673, 14250, 23034, 36894, 58750, 92298, 144398, 223994, 344916, 527116, 801295, 1209870, 1816539, 2713956, 4033169, 5961700, 8775236, 12852444, 18742153, 27225316, 39371647, 56743200, 81467211
OFFSET
0,2
COMMENTS
Convolution of A022629 and A000041.
LINKS
MATHEMATICA
nmax = 50; CoefficientList[Series[Product[(1+k*x^k)/(1-x^k), {k, 1, nmax}], {x, 0, nmax}], x]
CROSSREFS
KEYWORD
nonn
AUTHOR
Vaclav Kotesovec, Jan 08 2016
STATUS
approved