A303522 Number of nX5 0..1 arrays with every element equal to 0, 1, 3, 4, 5 or 6 horizontally, diagonally or antidiagonally adjacent elements, with upper left element zero.

8, 31, 80, 359, 1758, 9225, 56046, 366415, 2519399, 17926787, 129675215, 946882296, 6952003074, 51182425206, 377395379937, 2785188408332, 20564328532736, 151875658775227, 1121831718798095, 8287122669326048, 61221054216532119

Offset

1,1

Comments

Column 5 of A303525.

Links

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

Example

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

Crossrefs

Cf. A303525.

Sequence in context: A115293 A212579 A115004 * A299261 A005338 A006322

Adjacent sequences: A303519 A303520 A303521 * A303523 A303524 A303525

Keyword

nonn

Author

R. H. Hardin, Apr 25 2018

Status

approved