A302475 Number of 5Xn 0..1 arrays with every element equal to 1, 2, 3 or 5 horizontally, diagonally or antidiagonally adjacent elements, with upper left element zero.

0, 111, 1147, 8493, 101109, 1141147, 12546601, 139759054, 1548957170, 17209805574, 191189374845, 2123106854954, 23580609870792, 261901958253063, 2908820703189575, 32306899350522648, 358817934715149945

Offset

1,2

Comments

Row 5 of A302472.

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

Crossrefs

Cf. A302472.

Sequence in context: A290627 A199979 A102782 * A303256 A137465 A101152

Adjacent sequences: A302472 A302473 A302474 * A302476 A302477 A302478

Keyword

nonn

Author

R. H. Hardin, Apr 08 2018

Status

approved