A316086 - OEIS

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A316086

Product_{k>=1} 1/(1 - a(k)*x^k) = 1 + Sum_{k>=1} k^2*x^k.

1, 3, 5, -2, -6, -35, -4, 8, 16, -62, -158, -1149, 56, 556, 680, -1566, -4966, 3544, 6132, 20268, 15792, -75194, -162814, -1246153, 333904, 805112, 235968, -2775034, -5259270, 7160120, 15199212, 25457976, -4403208, -119142438, -161039518, 211525304, 635914664

(list; graph; refs; listen; history; text; internal format)

OFFSET

1,2

LINKS

Seiichi Manyama, Table of n, a(n) for n = 1..500

EXAMPLE

1/((1-x)*(1-3*x^2)*(1-5*x^3)*(1+2*x^4)* ... ) = 1 + x + 4*x^2 + 9*x^3 + 16*x^4 + ... .

CROSSREFS

Cf. A147559, A253909, A316087.

Sequence in context: A064790 A113966 A164611 * A227988 A182813 A334627

Adjacent sequences: A316083 A316084 A316085 * A316087 A316088 A316089

KEYWORD

sign

AUTHOR

Seiichi Manyama, Jun 24 2018

STATUS

approved