id:A120783 - OEIS Search Results

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A120783

Denominators of partial sums of Catalan numbers scaled by powers of 1/12.

+0
5

1, 12, 72, 1728, 10368, 41472, 248832, 11943936, 214990848, 2579890176, 15479341056, 371504185344, 2229025112064, 26748301344768, 53496602689536, 1711891286065152, 10271347716390912, 369768517790072832 (list; graph; listen)

	OFFSET	`0,2`
	COMMENT	`Numerators are given under A120782.`
	FORMULA	`a(n)=denominator(r(n)), with the rationals r(n):=sum(C(k)/12^k,k=0..n) with C(k):=A000108(k) (Catalan numbers).`
	CROSSREFS	`Sequence in context: A138402 A108734 A120793 this_sequence A103475 A024014 A069039` `Adjacent sequences: A120780 A120781 A120782 this_sequence A120784 A120785 A120786`
	KEYWORD	`nonn,easy`
	AUTHOR	`Wolfdieter Lang (wolfdieter.lang(AT)physik.uni-karlsruhe.de), Jul 20 2006`

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Last modified July 25 07:41 EDT 2008. Contains 142293 sequences.

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