id:A069409 - OEIS Search Results

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Half the number of n X 9 binary arrays with a path of adjacent 1's and a path of adjacent 0's from top row to bottom row.

+0
1

255, 111645, 40306317, 12817737731, 3816886269599 (list; graph; listen)

	OFFSET	`1,1`
	CROSSREFS	`Cf. 1 X n A000225, 2 X n A016269, 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: A024006 A022190 A069383 this_sequence A069435 A139305 A160514` `Adjacent sequences: A069406 A069407 A069408 this_sequence A069410 A069411 A069412`
	KEYWORD	`nonn`
	AUTHOR	`Ron Hardin (rhhardin(AT)att.net), Mar 22 2002.`

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Last modified November 25 20:09 EST 2009. Contains 167514 sequences.