A276552 - OEIS

A276552

Expansion of Product_{k>0} (1 - x^k)^(k*3).

1, -3, -3, 8, 12, 9, -29, -54, -51, 8, 168, 273, 270, -18, -546, -1220, -1539, -969, 796, 3693, 6591, 8098, 5412, -2568, -16053, -31524, -42195, -38684, -11868, 41994, 117630, 193365, 235497, 197758, 42852, -247224, -639547, -1041432, -1291425, -1184100, -520650

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OFFSET

0,2

LINKS

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

MATHEMATICA

With[{c=40}, CoefficientList[Series[Product[(1-x^k)^(3k), {k, c}], {x, 0, c}], x]] (* Harvey P. Dale, Jan 15 2026 *)

CROSSREFS

Column k=3 of A276554.

Product_{k>0} (1-x^k)^(k*m): A255610 (m=-3), A073592 (m=1), A276551 (m=2), this sequence (m=3).

Sequence in context: A358834 A384330 A346005 * A213030 A364468 A303902

Adjacent sequences: A276549 A276550 A276551 * A276553 A276554 A276555

KEYWORD

sign

AUTHOR

Seiichi Manyama, Apr 10 2017

STATUS

approved