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A291696 Expansion of Product_{k>=1} (1-x^(k^2))^(k^2). 3
1, -1, 0, 0, -4, 4, 0, 0, 6, -15, 9, 0, -4, 40, -36, 0, -15, -39, 90, -36, 64, -28, -180, 144, -96, 206, 106, -300, 148, -540, 332, 480, -232, 610, -1029, -189, 114, -86, 1880, -1068, 24, -921, -1545, 2466, -300, 2858, -1514, -3180, 976, -4121, 5590, 1995 (list; graph; refs; listen; history; text; internal format)
OFFSET

0,5

LINKS

Vaclav Kotesovec, Table of n, a(n) for n = 0..10000

MATHEMATICA

nmax = 100; CoefficientList[Series[Product[(1-x^(k^2))^(k^2), {k, 1, nmax}], {x, 0, nmax}], x]

CROSSREFS

Cf. A073592, A291649, A291655.

Sequence in context: A143266 A133845 A282289 * A291649 A216060 A230278

Adjacent sequences:  A291693 A291694 A291695 * A291697 A291698 A291699

KEYWORD

sign

AUTHOR

Vaclav Kotesovec, Aug 30 2017

STATUS

approved

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Last modified October 21 05:06 EDT 2018. Contains 316404 sequences. (Running on oeis4.)