id:A132863 - OEIS Search Results

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Expansion of 1/(1-3x*c(4x)), where c(x) is the g.f. of A000108 .

+0
3

1, 3, 21, 195, 2085, 24243, 297909 (list; graph; listen)

	OFFSET	`0,2`
	FORMULA	`a(n)=Sum_{k, 0<=k<=n}A039599(n,k)(-1)^k4^(n-k). - Philippe DELEHAM (kolotoko(AT)wanadoo.fr), Dec 11 2007`
	CROSSREFS	`Sequence in context: A059863 A057616 A151388 this_sequence A136223 A114469 A097690` `Adjacent sequences: A132860 A132861 A132862 this_sequence A132864 A132865 A132866`
	KEYWORD	`nonn`
	AUTHOR	`Philippe DELEHAM (kolotoko(AT)wanadoo.fr), Nov 18 2007`

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Last modified December 8 08:31 EST 2009. Contains 170430 sequences.