A296951 Number of nX7 0..1 arrays with each 1 adjacent to 1, 3 or 5 king-move neighboring 1s.

13, 608, 5763, 86139, 1898178, 29067775, 482228052, 8786244680, 148081034460, 2527093956658, 44081436520906, 756410616073885, 13001520369777372, 224610561730578221, 3867018822679814785, 66587006212100036798

Offset

1,1

Comments

Column 7 of A296952.

Links

R. H. Hardin, Table of n, a(n) for n = 1..210

Example

Some solutions for n=4
..0..1..0..0..0..1..0. .0..1..0..1..1..0..0. .0..1..1..0..0..0..0
..0..1..0..0..0..0..1. .1..0..0..0..0..0..0. .0..1..1..0..0..0..0
..0..0..0..0..0..0..0. .0..0..1..1..1..1..1. .0..0..0..0..1..1..1
..0..1..1..0..1..1..0. .0..0..0..0..1..0..0. .0..0..0..0..1..1..1

Crossrefs

Cf. A296952.

Sequence in context: A109875 A258303 A275045 * A362862 A351507 A067407

Adjacent sequences: A296948 A296949 A296950 * A296952 A296953 A296954

Keyword

nonn

Author

R. H. Hardin, Dec 22 2017

Status

approved