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A069365 Number of 7 X n binary arrays with a path of adjacent 1's from top row to bottom row. 0
1, 577, 153769, 30856705, 5388274121, 868972410929 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,2

LINKS

Table of n, a(n) for n=1..6.

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: A154511 A221331 A163042 * A163053 A097770 A252377

Adjacent sequences:  A069362 A069363 A069364 * A069366 A069367 A069368

KEYWORD

nonn

AUTHOR

R. H. Hardin, Mar 22 2002.

STATUS

approved

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Last modified November 13 23:48 EST 2019. Contains 329106 sequences. (Running on oeis4.)