A299745 Number of nX7 0..1 arrays with every element equal to 0, 1, 2, 3, 4, 6 or 8 king-move adjacent elements, with upper left element zero.

64, 7181, 235033, 8918662, 353167830, 13855907809, 543386033722, 21367169090398, 840301228632106, 33043973487074305, 1299576193014820884, 51112591346878150219, 2010269848883302227295, 79064794674947950235225

Offset

1,1

Comments

Column 7 of A299746.

Links

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

Example

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

Crossrefs

Cf. A299746.

Sequence in context: A299080 A299843 A299000 * A299667 A300258 A180377

Adjacent sequences: A299742 A299743 A299744 * A299746 A299747 A299748

Keyword

nonn

Author

R. H. Hardin, Feb 18 2018

Status

approved