id:A156857 - OEIS Search Results

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Expansion of (1+2x)/(1+x+4x^2)^2.

+0
1

1, 0, -9, 10, 45, -108, -125, 702, -135, -3320, 4239, 11250, -31931, -18180, 165915, -92762, -651375, 1101168, 1747495, -6710310, -694179, 30182500, -28394829, -101934450, 229069225, 203510232, -1198850625, 364506562, 4767453045 (list; graph; listen)

	OFFSET	`0,3`
	COMMENT	`Hankel transform of A091526.`
	FORMULA	`G.f.: (1+2x)/(1+2x+9x^2+8x^3+16x^4).`
	CROSSREFS	`Sequence in context: A154389 A041172 A045913 this_sequence A037954 A041174 A048070` `Adjacent sequences: A156854 A156855 A156856 this_sequence A156858 A156859 A156860`
	KEYWORD	`easy,sign`
	AUTHOR	`Paul Barry (pbarry(AT)wit.ie), Feb 17 2009`

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Last modified November 30 13:13 EST 2009. Contains 167758 sequences.

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