id:A109501 - OEIS Search Results

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Number of closed walks of length n on the complete graph on 7 nodes from a given node.

+0
2

1, 0, 6, 30, 186, 1110, 6666, 39990, 239946, 1439670, 8638026, 51828150, 310968906, 1865813430, 11194880586, 67169283510, 403015701066, 2418094206390, 14508565238346, 87051391430070, 522308348580426 (list; graph; listen)

	OFFSET	`0,3`
	FORMULA	`G.f. = (-1 + 5z)/(-1 + 5z + 6z^2)` `a(n) = (6^n + 6(-1)^n)/7`
	CROSSREFS	`Cf. A109502.` `Adjacent sequences: A109498 A109499 A109500 this_sequence A109502 A109503 A109504` `Sequence in context: A001473 A063888 A029571 this_sequence A005922 A057896 A054721`
	KEYWORD	`nonn,easy`
	AUTHOR	`Mitch Harris (harris.mitchell (AT) mgh.harvard.edu), Jun 30 2005`
	EXTENSIONS	`Corrected by Frank Adams-Watters (FrankTAW(AT)Netscape.net), Sep 18 2006`

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

AT&T Labs Research