A302806 Number of nX6 0..1 arrays with every element equal to 0, 1, 2, 3 or 5 horizontally, diagonally or antidiagonally adjacent elements, with upper left element zero.

32, 1405, 28128, 632004, 14458177, 327603711, 7428713676, 168777255305, 3832039683236, 87009511631968, 1975863003410635, 44867546574739748, 1018847987183719920, 23136108111721947785, 525376281243945915231

Offset

1,1

Comments

Column 6 of A302808.

Links

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

Example

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

Crossrefs

Cf. A302808.

Sequence in context: A160447 A302263 A302963 * A303467 A240345 A358157

Adjacent sequences: A302803 A302804 A302805 * A302807 A302808 A302809

Keyword

nonn

Author

R. H. Hardin, Apr 13 2018

Status

approved