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Search: id:A069427
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A069427 Number of n X 7 binary arrays with a path of adjacent 1's and no path of adjacent 0's from top row to bottom row. +0
1
1, 2059, 509019, 77892523, 9681281781 (list; graph; listen)
OFFSET

1,2

CROSSREFS

Cf. 2 X n A001047, n X 2 A034182, 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: A168227 A074996 A045055 this_sequence A106719 A119722 A168432

Adjacent sequences: A069424 A069425 A069426 this_sequence A069428 A069429 A069430

KEYWORD

nonn

AUTHOR

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

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Last modified December 21 10:15 EST 2009. Contains 171081 sequences.


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