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A285285 Expansion of Product_{k>=1} (1 - x^k)^k/(1 - x^(5*k))^(5*k). 3
1, -1, -2, -1, 0, 9, -1, -3, -2, -2, 36, -22, -40, -34, -23, 154, -53, -89, -48, -4, 652, -161, -352, -293, -213, 1974, -813, -1416, -1198, -838, 6386, -2328, -3970, -3054, -1682, 20641, -5637, -10436, -8183, -4723, 59693, -17856, -32830, -28002, -19303 (list; graph; refs; listen; history; text; internal format)
OFFSET

0,3

LINKS

Seiichi Manyama, Table of n, a(n) for n = 0..10000

MATHEMATICA

nmax = 50; CoefficientList[Series[Product[(1 - x^k)^k/(1 - x^(5*k))^(5*k), {k, 1, nmax}], {x, 0, nmax}], x] (* Vaclav Kotesovec, Apr 16 2017 *)

CROSSREFS

Product_{k>=1} (1 - x^k)^k/(1 - x^(m*k))^(m*k): A285069 (m=2), A285247 (m=3), A285284 (m=4), this sequence (m=5).

Sequence in context: A202817 A322222 A265012 * A338858 A201897 A246658

Adjacent sequences:  A285282 A285283 A285284 * A285286 A285287 A285288

KEYWORD

sign

AUTHOR

Seiichi Manyama, Apr 16 2017

STATUS

approved

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Last modified January 26 13:09 EST 2022. Contains 350598 sequences. (Running on oeis4.)