id:A075126 - OEIS Search Results

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Number of bargraphs of site-perimeter n.

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0, 0, 0, 1, 0, 2, 2, 4, 8, 14, 26, 52, 97, 193, 377, 752, 1500, 3022, 6107, 12429, 25365, 52042, 107090, 221235, 458316, 952439, 1984262, 4144601, 8676232, 18202536 (list; graph; listen)

	OFFSET	`0,6`
	LINKS	`M. Bousquet-Melou and A. Rechnitzer, The site-perimeter of bargraphs, Adv. in Appl. Math. 31 (2003), 86-112.`
	FORMULA	`The generating function is known in closed form. Closed, but complicated. It is proved to be non-D-finite.`
	CROSSREFS	`Sequence in context: A036761 A042979 A000018 this_sequence A098788 A153999 A154002` `Adjacent sequences: A075123 A075124 A075125 this_sequence A075127 A075128 A075129`
	KEYWORD	`nonn`
	AUTHOR	`Andrew Rechnitzer (a.rechnitzer(AT)ms.unimelb.edu.au), Sep 09 2002`

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Last modified November 27 22:38 EST 2009. Contains 167602 sequences.

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