A303202 Number of 7Xn 0..1 arrays with every element equal to 0, 1, 3, 5 or 6 horizontally, diagonally or antidiagonally adjacent elements, with upper left element zero.

64, 86, 305, 1357, 5573, 32223, 164295, 791150, 3806973, 20061588, 102569116, 509264634, 2533233396, 13009655163, 66295486978, 333341116143, 1676598847494, 8537179144591, 43394714360416, 219303340502779, 1108007577865676

Offset

1,1

Comments

Row 7 of A303197.

Links

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

Example

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

Crossrefs

Cf. A303197.

Sequence in context: A302169 A302640 A302432 * A302315 A303045 A302882

Adjacent sequences: A303199 A303200 A303201 * A303203 A303204 A303205

Keyword

nonn

Author

R. H. Hardin, Apr 19 2018

Status

approved