id:A067968 - OEIS Search Results

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Number of binary arrangements on n X n array without adjacent three 1's.

+0
4

2, 11, 163, 6547, 720417, 216173426, 177509416175, 398239490006383, 2441922679051541299, 40923800121824894177005, 1874434223405139511637099884, 234647514833189124245764389957097 (list; graph; listen)

	OFFSET	`1,1`
	REFERENCES	`S. R. Finch, Mathematical Constants, Cambridge, 2003, pp. 342-349.`
	LINKS	`S. R. Finch, Hard Square Entropy Constant`
	CROSSREFS	`Adjacent three in a row or column gives A050974.` `Sequence in context: A111014 A049462 A058154 this_sequence A013050 A051255 A120445` `Adjacent sequences: A067965 A067966 A067967 this_sequence A067969 A067970 A067971`
	KEYWORD	`nonn`
	AUTHOR	`Ron Hardin (rhh(AT)cadence.com), Feb 02 2002`

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

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