A302263 Number of nX6 0..1 arrays with every element equal to 0, 1, 2 or 3 horizontally, diagonally or antidiagonally adjacent elements, with upper left element zero.

32, 1405, 19191, 284428, 4289139, 64975832, 982041385, 14850510984, 224584502616, 3396894785618, 51378080369692, 777114464739294, 11754193622516512, 177788578767001402, 2689153640060642062

Offset

1,1

Comments

Column 6 of A302265.

Links

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

Example

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

Crossrefs

Cf. A302265.

Sequence in context: A231040 A254152 A160447 * A302963 A302806 A303467

Adjacent sequences: A302260 A302261 A302262 * A302264 A302265 A302266

Keyword

nonn

Author

R. H. Hardin, Apr 04 2018

Status

approved