id:A122269 - OEIS Search Results

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Expansion of f(-q)^10*Q(q) in powers of q.

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1, 230, -205, -6510, 18615, 478, 0, -181220, 221595, 246380, -329666, 360910, -1444915, 0, 2504645, 925922, -2420665, 0, 109940, -8382140, 5764801, 6217240, 13420615, -12214840, -17672945, 20722082, -24540725, 0, 0, 17018700, 54717118, -97990, -61107435 (list; graph; listen)

	OFFSET	`0,2`
	COMMENT	`f(-q) (g.f. A010815) and Q(q) (g.f. A004009) are Ramanujan q-series.`
	PROGRAM	`(PARI) {a(n)=local(A); if(n<0, 0, A=xO(x^n); polcoeff( eta(x+A)^10sum(k=1, n, 240sigma(k, 3)x^k, 1+A), n))}`
	CROSSREFS	`Adjacent sequences: A122266 A122267 A122268 this_sequence A122270 A122271 A122272` `Sequence in context: A124684 A028452 A072020 this_sequence A051183 A031965 A088289`
	KEYWORD	`sign`
	AUTHOR	`Michael Somos, Aug 28 2006`

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Last modified May 16 23:01 EDT 2008. Contains 139884 sequences.

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