A295942 Number of nX7 0..1 arrays with each 1 adjacent to 1 or 3 king-move neighboring 1s.

13, 529, 4667, 65009, 1311947, 18443146, 279143247, 4651767361, 71601077879, 1113325540538, 17728921826557, 277559110403766, 4349266027972356, 68547642119549740, 1076488599652738176, 16903736224033460915

Offset

1,1

Comments

Column 7 of A295943.

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. .1..0..1..1..0..1..0. .0..0..1..0..0..0..0
..0..1..0..0..0..0..1. .0..1..1..0..1..0..0. .0..1..1..1..1..0..0
..0..1..1..0..0..0..0. .0..0..0..0..0..1..0. .1..0..0..0..0..0..1
..1..0..0..1..0..1..1. .0..1..1..0..0..0..0. .0..0..0..1..1..0..1

Crossrefs

Cf. A295943.

Sequence in context: A139168 A174564 A300525 * A297518 A281055 A030256

Adjacent sequences: A295939 A295940 A295941 * A295943 A295944 A295945

Keyword

nonn

Author

R. H. Hardin, Nov 30 2017

Status

approved