id:A132683 - OEIS Search Results

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a(n) = C(2^n + n, n).

+0
4

1, 3, 15, 165, 4845, 435897, 131115985, 138432467745, 525783425977953, 7271150092378906305, 368539102493388126164865, 68777035446753808820521420545, 47450879627176629761462147774626305 (list; graph; listen)

	OFFSET	`0,2`
	FORMULA	`a(n) = [x^n] 1/(1-x)^(2^n + 1).`
	PROGRAM	`(PARI) a(n)=binomial(2^n+n, n)`
	CROSSREFS	`Cf. A060690, A132684.` `Adjacent sequences: A132680 A132681 A132682 this_sequence A132684 A132685 A132686` `Sequence in context: A097489 A080696 A015013 this_sequence A059386 A077792 A087614`
	KEYWORD	`nonn`
	AUTHOR	`Paul D. Hanna (pauldhanna(AT)juno.com), Aug 26 2007`

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Last modified October 13 20:18 EDT 2008. Contains 145016 sequences.

AT&T Labs Research