id:A005317 - OEIS Search Results

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(2^n + C(2n,n))/2.
(Formerly M1460)

+0
2

1, 2, 5, 14, 43, 142, 494, 1780, 6563, 24566, 92890, 353740, 1354126, 5204396, 20066492, 77575144, 300572963, 1166868646, 4537698722, 17672894044, 68923788698, 269129985796, 1052051579012, 4116719558104, 16123810230158, 63205319996092, 247959300028484 (list; graph; listen)

	OFFSET	`0,2`
	COMMENT	`Hankel transform is A008619. - Paul Barry (pbarry(AT)wit.ie), Nov 13 2007`
	MAPLE	`f := n->(2^n+binomial(2*n, n))/2;`
	CROSSREFS	`Sequence in context: A066351 A029889 A123020 this_sequence A126566 A112808 A088927` `Adjacent sequences: A005314 A005315 A005316 this_sequence A005318 A005319 A005320`
	KEYWORD	`nonn,easy`
	AUTHOR	`njas and Peter Fishburn.`

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Last modified July 24 12:00 EDT 2008. Contains 142294 sequences.

AT&T Labs Research