A069370 Number of 12 X n binary arrays with a path of adjacent 1's from top row to bottom row.

1, 47321, 634712209, 5341429762353, 35761396310047985, 210101996822111263265, 1137001292953873957167377, 5822276945638780019957186657, 28672084199736350940864453233905, 137200626549758017615769211506956897, 642383534197189939475136495116939323825

Offset

1,2

Links

Table of n, a(n) for n=1..11.

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: A293584 A263067 A234708 * A241221 A261339 A166003

Adjacent sequences: A069367 A069368 A069369 * A069371 A069372 A069373

Keyword

nonn

Author

R. H. Hardin, Mar 22 2002

Extensions

a(6)-a(11) from Sean A. Irvine, Apr 30 2024

Status

approved