A320400 Number of nX6 0..1 arrays with every element unequal to 0, 1, 2, 3 or 5 horizontally, vertically or antidiagonally adjacent elements, with upper left element zero.

32, 1178, 18754, 368049, 6845143, 127789964, 2392115850, 44629532699, 834140753692, 15580741264463, 291092212043702, 5438147049045711, 101595093735936213, 1898003488715538165, 35458425306773811200

Offset

1,1

Comments

Column 6 of A320402.

Links

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

Example

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

Crossrefs

Cf. A320402.

Sequence in context: A184758 A189956 A318014 * A367538 A194652 A330481

Adjacent sequences: A320397 A320398 A320399 * A320401 A320402 A320403

Keyword

nonn

Author

R. H. Hardin, Oct 12 2018

Status

approved