A069364 Number of 6 X n binary arrays with a path of adjacent 1's from top row to bottom row.

1, 239, 29089, 2764991, 232824241, 18287614751, 1374273318721, 100193001007135, 7146486319870849, 501394148790682463, 34728307983514473409, 2380826437768134741023, 161857825276476548906497

Offset

1,2

Links

Table of n, a(n) for n=1..13.

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: A224373 A278852 A163041 * A163052 A254298 A181855

Adjacent sequences: A069361 A069362 A069363 * A069365 A069366 A069367

Keyword

nonn,more

Author

R. H. Hardin, Mar 22 2002

Extensions

a(9)-a(13) from Sean A. Irvine, Apr 29 2024

Status

approved