A296127 Number of nX7 0..1 arrays with each 1 adjacent to 2 or 5 king-move neighboring 1s.

1, 121, 553, 2463, 35733, 263489, 1810441, 16855693, 138016847, 1087543621, 9228070694, 76704166206, 628908321069, 5245176224753, 43644001864720, 361707709471024, 3008980635521615, 25033019588307299, 208047564104356544

Offset

1,2

Comments

Column 7 of A296128.

Links

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

Example

Some solutions for n=5
..0..0..0..0..1..1..0. .0..1..0..0..0..0..0. .0..0..1..1..0..0..0
..0..1..1..0..1..0..0. .1..1..0..0..0..0..0. .0..1..0..0..1..0..0
..1..0..0..1..1..1..1. .0..0..0..0..0..0..0. .0..1..0..0..0..1..0
..0..1..0..1..1..0..1. .0..1..1..0..0..1..1. .0..1..0..1..1..0..0
..0..0..1..0..1..0..0. .0..0..1..0..0..1..0. .0..0..1..0..0..0..0

Crossrefs

Cf. A296128.

Sequence in context: A077432 A017654 A183448 * A307798 A204034 A183885

Adjacent sequences: A296124 A296125 A296126 * A296128 A296129 A296130

Keyword

nonn

Author

R. H. Hardin, Dec 05 2017

Status

approved