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A069387 Number of n X 12 binary arrays with a path of adjacent 1's from top row to bottom row. 0
4095, 16245775, 60131384705, 210502738714097, 714097521397778495 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,1

LINKS

Table of n, a(n) for n=1..5.

CROSSREFS

Cf. 1 X n A000225, 2 X n A005061, n X 2 A001333, 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: A321551 A161004 A022194 * A069413 A069439 A212935

Adjacent sequences:  A069384 A069385 A069386 * A069388 A069389 A069390

KEYWORD

nonn

AUTHOR

R. H. Hardin, Mar 22 2002.

STATUS

approved

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Last modified January 28 03:28 EST 2020. Contains 331314 sequences. (Running on oeis4.)