A069384 Number of n X 9 binary arrays with a path of adjacent 1's from top row to bottom row.

511, 242461, 105683341, 43843180113, 17792504911231

Offset

1,1

Links

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

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: A321548 A160956 A022191 * A069410 A289475 A069436

Adjacent sequences: A069381 A069382 A069383 * A069385 A069386 A069387

Keyword

nonn

Author

R. H. Hardin, Mar 22 2002

Status

approved