id:A132687 - OEIS Search Results

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a(n) = C(2^n + 3*n - 1, n).

+0
3

1, 4, 36, 560, 17550, 1370754, 324540216, 267212177232, 822871715492970, 9728874233306696390, 442491588454024774291770, 76919746769405407508866898400, 50743487119356450255156023756871000 (list; graph; listen)

	OFFSET	`0,2`
	FORMULA	`a(n) = [x^n] 1/(1-x)^(2^n + 2*n).`
	PROGRAM	`(PARI) a(n)=binomial(2^n+3*n-1, n)`
	CROSSREFS	`Cf. A132688, A132689.` `Sequence in context: A052746 A098629 A070780 this_sequence A073852 A139033 A001044` `Adjacent sequences: A132684 A132685 A132686 this_sequence A132688 A132689 A132690`
	KEYWORD	`nonn`
	AUTHOR	`Paul D. Hanna (pauldhanna(AT)juno.com), Aug 26 2007`

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Last modified July 26 23:19 EDT 2008. Contains 142293 sequences.

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