id:A115046 - OEIS Search Results

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G.f.: (1+x^2)^2*(x^4-6*x^3+1)/(x^2-1)^4.

+0
2

1, 0, 6, -6, 20, -36, 50, -114, 104, -264, 190, -510, 316, -876, 490, -1386, 720, -2064, 1014, -2934, 1380, -4020, 1826, -5346, 2360, -6936, 2990, -8814, 3724, -11004, 4570, -13530, 5536, -16416, 6630, -19686, 7860, -23364, 9234, -27474, 10760, -32040, 12446, -37086, 14300, -42636, 16330 (list; graph; listen)

	OFFSET	`0,3`
	COMMENT	`This sequence arose from an arithmetic error when computing A136264.`
	LINKS	`Index entries for sequences related to linear recurrences with constant coefficients`
	FORMULA	`a(n)= -n/12+3/4-n^3/6+3n^2/4+(-1)^n*(-3n^2/4+29n/12-3/4+n^3/3), n>0. [From R. J. Mathar (mathar(AT)strw.leidenuniv.nl), Mar 15 2009]`
	CROSSREFS	`Sequence in context: A092297 A073096 A045896 this_sequence A004983 A034695 A053168` `Adjacent sequences: A115043 A115044 A115045 this_sequence A115047 A115048 A115049`
	KEYWORD	`sign`
	AUTHOR	`Roger Bagula (rlbagulatftn(AT)yahoo.com), Feb 28 2006`
	EXTENSIONS	`Edited by N. J. A. Sloane (njas(AT)research.att.com), Dec 21 2006 and Apr 19 2008`

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Last modified December 15 00:47 EST 2009. Contains 170825 sequences.

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