A069445 - OEIS

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A069445

Half the number of n X 7 binary arrays with no path of adjacent 1's or adjacent 0's from top row to bottom row.

64, 63168, 22886754, 5267756806 (list; graph; refs; listen; history; internal format)

	OFFSET	`2,1`
	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: A016830 A103346 A123394 * A159677 A013832 A034989` `Adjacent sequences: A069442 A069443 A069444 * A069446 A069447 A069448`
	KEYWORD	`nonn`
	AUTHOR	`R. H. Hardin (rhhardin(AT)att.net), Mar 22 2002.`

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Last modified February 17 18:26 EST 2012. Contains 206065 sequences.