A069426 Number of n X 6 binary arrays with a path of adjacent 1's and no path of adjacent 0's from top row to bottom row.

1, 665, 70679, 4927163, 287275073

Offset

1,2

Links

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

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: A317396 A211839 A171395 * A093733 A133562 A202445

Adjacent sequences: A069423 A069424 A069425 * A069427 A069428 A069429

Keyword

nonn

Author

R. H. Hardin, Mar 22 2002

Status

approved