A303511 Number of nX6 0..1 arrays with every element equal to 0, 1, 2, 4, 5 or 6 horizontally, diagonally or antidiagonally adjacent elements, with upper left element zero.

32, 360, 2764, 43448, 656838, 8883058, 130480638, 1939853204, 28081434251, 411774371195, 6065493199253, 88825470476780, 1303638255689018, 19157568544429324, 281164304594766472, 4128168441412395123

Offset

1,1

Comments

Column 6 of A303513.

Links

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

Example

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

Crossrefs

Cf. A303513.

Sequence in context: A260359 A105250 A302818 * A240787 A191901 A191489

Adjacent sequences: A303508 A303509 A303510 * A303512 A303513 A303514

Keyword

nonn

Author

R. H. Hardin, Apr 25 2018

Status

approved