A300424 Number of nX5 0..1 arrays with every element equal to 1, 2 or 3 horizontally, vertically or antidiagonally adjacent elements, with upper left element zero.

3, 96, 1390, 18205, 240196, 3175101, 41940055, 553858752, 7314644478, 96601163193, 1275761565009, 16848387433285, 222508616223701, 2938565229183137, 38808230767812986, 512521810773712332

Offset

1,1

Comments

Column 5 of A300427.

Links

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

Example

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

Crossrefs

Cf. A300427.

Sequence in context: A249787 A264548 A094085 * A300686 A300609 A301351

Adjacent sequences: A300421 A300422 A300423 * A300425 A300426 A300427

Keyword

nonn

Author

R. H. Hardin, Mar 05 2018

Status

approved