id:A114903 - OEIS Search Results

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Number of compositions of {1,..,n} such that no two adjacent parts are of equal size (labeled Carlitz compositions), allowing parts to be of size 0.

+0
2

2, 4, 12, 76, 572, 5204, 59340, 782996, 11707324, 197988340, 3720933092, 76811352116, 1730660689580, 42251140165108, 1110607948991028, 31279537587370916, 939737174809843644, 29996522608581396788 (list; graph; listen)

	OFFSET	`0,1`
	FORMULA	`E.g.f.: 2*B(x)/(2-B(x)) where B(x) is e.g.f. of A114902.`
	CROSSREFS	`Cf. A114900, A114902.` `Sequence in context: A085864 A060935 A141522 this_sequence A038054 A003180 A002080` `Adjacent sequences: A114900 A114901 A114902 this_sequence A114904 A114905 A114906`
	KEYWORD	`nonn`
	AUTHOR	`Christian G. Bower (bowerc(AT)usa.net), Jan 05 2006`

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Last modified November 18 20:14 EST 2008. Contains 147244 sequences.

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