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A069443 Half the number of n X 5 binary arrays with no path of adjacent 1's or adjacent 0's from top row to bottom row. 0
16, 2304, 157058, 7664414, 317229344, 11974298030, 427585649578, 14741384488782 (list; graph; refs; listen; history; text; internal format)
OFFSET

2,1

LINKS

Table of n, a(n) for n=2..9.

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: A196884 A165126 A241368 * A227658 A298197 A016876

Adjacent sequences:  A069440 A069441 A069442 * A069444 A069445 A069446

KEYWORD

nonn

AUTHOR

R. H. Hardin, Mar 22 2002

STATUS

approved

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Last modified May 25 05:58 EDT 2022. Contains 354048 sequences. (Running on oeis4.)