id:A141223 - OEIS Search Results

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

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1, 5, 24, 113, 526, 2430, 11166, 51105, 233190, 1061510, 4822984, 21879786, 99135076, 448707992, 2029215114, 9170247393, 41416383366, 186957126702, 843575853984, 3804927658878, 17156636097156, 77339426905812 (list; graph; listen)

	OFFSET	`0,2`
	COMMENT	`Binomial transform of A126932. Hankel transform is (-1)^n.`
	FORMULA	`a(n)=sum{k=0..n, C(2n-k,n-k)*3^k}`
	CROSSREFS	`Adjacent sequences: A141220 A141221 A141222 this_sequence A141224 A141225 A141226` `Sequence in context: A000953 A081104 A079028 this_sequence A140766 A026388 A057969`
	KEYWORD	`easy,nonn`
	AUTHOR	`Paul Barry (pbarry(AT)wit.ie), Jun 14 2008`

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Last modified November 8 20:39 EST 2009. Contains 166234 sequences.

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