A302818 Number of nX6 0..1 arrays with every element equal to 0, 1, 2, 4 or 5 horizontally, diagonally or antidiagonally adjacent elements, with upper left element zero.

32, 360, 2419, 34957, 455224, 5520999, 72576189, 960564532, 12417289008, 162512726627, 2137374128065, 27943933038399, 365979727306687, 4801629031632168, 62906786350458238, 824314492591510708

Offset

1,1

Comments

Column 6 of A302820.

Links

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

Example

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

Crossrefs

Cf. A302820.

Sequence in context: A303014 A260359 A105250 * A303511 A240787 A191901

Adjacent sequences: A302815 A302816 A302817 * A302819 A302820 A302821

Keyword

nonn

Author

R. H. Hardin, Apr 13 2018

Status

approved