A299246 Number of nX5 0..1 arrays with every element equal to 0, 2, 3, 5, 6 or 7 king-move adjacent elements, with upper left element zero.

1, 31, 30, 192, 1095, 5042, 21251, 111818, 577544, 2671192, 13666341, 68251730, 337908406, 1685990324, 8431949244, 42087273799, 209909970220, 1049387080384, 5241184058073, 26176899422346, 130786862915157, 653424242725917

Offset

1,2

Comments

Column 5 of A299249.

Links

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

Example

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

Crossrefs

Cf. A299249.

Sequence in context: A022987 A023473 A298379 * A291477 A056999 A009734

Adjacent sequences: A299243 A299244 A299245 * A299247 A299248 A299249

Keyword

nonn

Author

R. H. Hardin, Feb 05 2018

Status

approved