A303467 Number of nX6 0..1 arrays with every element equal to 0, 1, 2, 3, 5 or 6 horizontally, diagonally or antidiagonally adjacent elements, with upper left element zero.

32, 1405, 29009, 692636, 17247543, 427097893, 10589284528, 263136262937, 6538180319944, 162474283068763, 4038093885728800, 100363335141370610, 2494483012817443067, 61999957389103505229, 1541003358426712853022

Offset

1,1

Comments

Column 6 of A303469.

Links

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

Example

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

Crossrefs

Cf. A303469.

Sequence in context: A302263 A302963 A302806 * A240345 A358157 A300470

Adjacent sequences: A303464 A303465 A303466 * A303468 A303469 A303470

Keyword

nonn

Author

R. H. Hardin, Apr 24 2018

Status

approved