id:A069448 - OEIS Search Results

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Half the number of 3 X n binary arrays with no path of adjacent 1's or adjacent 0's from top to bottom or side to side.

+0
92

3, 35, 269, 1723, 10123, 56757, 309755, 1663515, 8846821, 46767491, 246319875, 1294402053, 6792548971, 35614277883, 186632524741, 977711862035, 5120933346419 (list; graph; listen)

	OFFSET	`2,1`
	CROSSREFS	`Cf. 2 X n 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.` `Adjacent sequences: A069445 A069446 A069447 this_sequence A069449 A069450 A069451` `Sequence in context: A130061 A061548 A019273 this_sequence A121078 A112488 A089933`
	KEYWORD	`nonn`
	AUTHOR	`Ron Hardin (rhh(AT)cadence.com), Mar 22 2002.`

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Last modified October 7 14:39 EDT 2008. Contains 144666 sequences.

AT&T Labs Research