A300544 Number of nX6 0..1 arrays with every element equal to 1, 2, 3 or 4 horizontally, vertically or antidiagonally adjacent elements, with upper left element zero.

5, 450, 18365, 724165, 29114990, 1170734982, 47042626155, 1890308500802, 75958861124241, 3052275114812686, 122650349309393222, 4928490505750268888, 198042801955605338784, 7958004855043245830095, 319778556203277719530004

Offset

1,1

Comments

Column 6 of A300546.

Links

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

Example

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

Crossrefs

Cf. A300546.

Sequence in context: A333263 A212042 A177026 * A055305 A300971 A300928

Adjacent sequences: A300541 A300542 A300543 * A300545 A300546 A300547

Keyword

nonn

Author

R. H. Hardin, Mar 08 2018

Status

approved