A069436 Half the number of 10 X n binary arrays with no path of adjacent 1's or adjacent 0's from top row to bottom row.

511, 516170, 514178822, 507006229578

Offset

1,1

Links

Table of n, a(n) for n=1..4.

Crossrefs

Cf. 2 X n A000079, n X 1 A000225, 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: A069384 A069410 A289475 * A217915 A263167 A139303

Adjacent sequences: A069433 A069434 A069435 * A069437 A069438 A069439

Keyword

nonn

Author

R. H. Hardin, Mar 22 2002

Status

approved