A069431 - OEIS

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A069431

Half the number of 5 X n binary arrays with no path of adjacent 1's or adjacent 0's from top row to bottom row.

15, 414, 11058, 291782, 7664414, 200993408, 5267756806, 138031237058, 3616567402784 (list; graph; refs; listen; history; internal format)

	OFFSET	`1,1`
	CROSSREFS	`Cf. 2 X n A000079, n X 1 A000225, vertical path of 1 A069361-A069395, vertical paths of 0+1 A069396-A069416, vertical path of 1 not 0 A069417-A069428, no vertical paths A069429-A069447, no horizontal or vertical paths A069448-A069452.` `Sequence in context: A143001 A034675 A184222 * A133791 A068203 A020285` `Adjacent sequences: A069428 A069429 A069430 * A069432 A069433 A069434`
	KEYWORD	`nonn`
	AUTHOR	`R. H. Hardin (rhhardin(AT)att.net), Mar 22 2002.`

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Last modified February 14 11:11 EST 2012. Contains 205616 sequences.