A069381 Number of n X 6 binary arrays with a path of adjacent 1's from top row to bottom row.

63, 3367, 167337, 8057905, 384479935, 18287614751, 868972410929, 41278350729313, 1960665141991079, 93127506982471999, 4423369428678533705, 210101996822111263265, 9979493366382754619551, 474010149850018604630031, 22514756623847166766088601

Offset

1,1

Links

Sean A. Irvine, Table of n, a(n) for n = 1..200

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: A167987 A273437 A375179 * A051589 A203457 A258684

Adjacent sequences: A069378 A069379 A069380 * A069382 A069383 A069384

Keyword

nonn

Author

R. H. Hardin, Mar 22 2002

Extensions

More terms from Sean A. Irvine, Apr 30 2024

Status

approved