A302326 Number of 5Xn 0..1 arrays with every element equal to 0, 1, 2 or 4 horizontally, diagonally or antidiagonally adjacent elements, with upper left element zero.

16, 264, 1144, 4525, 20686, 104932, 529381, 2593409, 12723622, 63324996, 317094174, 1585110143, 7916042111, 39591620182, 198355232579, 994432912057, 4986588408216, 25014245719741, 125539045973986, 630285367123705

Offset

1,1

Comments

Row 5 of A302322.

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..0..1..1..0. .0..0..1..1..0. .0..1..0..0..0
..0..1..1..0..1. .0..0..1..1..0. .1..0..1..0..0. .1..1..1..0..1
..0..1..0..1..1. .0..1..0..1..0. .1..0..1..0..1. .1..0..1..0..1
..0..0..1..1..0. .1..0..0..1..0. .0..0..0..1..1. .0..0..1..1..0
..1..0..0..1..0. .0..0..1..1..1. .0..1..0..0..1. .1..1..0..0..1

Crossrefs

Cf. A302322.

Sequence in context: A302626 A302418 A303185 * A303019 A302823 A303516

Adjacent sequences: A302323 A302324 A302325 * A302327 A302328 A302329

Keyword

nonn

Author

R. H. Hardin, Apr 05 2018

Status

approved