A320399 Number of nX5 0..1 arrays with every element unequal to 0, 1, 2, 3 or 5 horizontally, vertically or antidiagonally adjacent elements, with upper left element zero.

16, 338, 3694, 46516, 561290, 6845143, 83509525, 1016183713, 12380173295, 150735949441, 1835742312808, 22354942809197, 272235088796050, 3315230248832552, 40372220823851110, 491645689998207688

Offset

1,1

Comments

Column 5 of A320402.

Links

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

Example

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

Crossrefs

Cf. A320402.

Sequence in context: A013993 A058722 A318013 * A173906 A227102 A221577

Adjacent sequences: A320396 A320397 A320398 * A320400 A320401 A320402

Keyword

nonn

Author

R. H. Hardin, Oct 12 2018

Status

approved