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Search: id:A069451
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A069451 Half the number of 6 X n binary arrays with no path of adjacent 1's or adjacent 0's from top to bottom or side to side. +0
1
31, 10123, 1389619, 127780201, 9622763387 (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.

Sequence in context: A135811 A119598 A139295 this_sequence A073099 A074218 A161395

Adjacent sequences: A069448 A069449 A069450 this_sequence A069452 A069453 A069454

KEYWORD

nonn

AUTHOR

Ron Hardin (rhhardin(AT)att.net), Mar 22 2002.

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Last modified December 13 23:45 EST 2009. Contains 170824 sequences.


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