A302432 Number of 7Xn 0..1 arrays with every element equal to 0, 1, 3 or 5 horizontally, diagonally or antidiagonally adjacent elements, with upper left element zero.

64, 86, 207, 879, 2503, 12527, 48037, 204549, 775916, 3358602, 13687791, 56973192, 229275449, 958442181, 3959517524, 16388638144, 67033864950, 277552341954, 1148287668884, 4747634176800, 19530191061230, 80658890197236

Offset

1,1

Comments

Row 7 of A302427.

Links

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

Example

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

Crossrefs

Cf. A302427.

Sequence in context: A223083 A302169 A302640 * A303202 A302315 A303045

Adjacent sequences: A302429 A302430 A302431 * A302433 A302434 A302435

Keyword

nonn

Author

R. H. Hardin, Apr 07 2018

Status

approved