A298227 Number of nX5 0..1 arrays with every element equal to 0, 1, 3, 4 or 5 king-move adjacent elements, with upper left element zero.

8, 50, 12, 490, 1749, 7038, 71212, 440402, 2785299, 22451954, 156085555, 1080413616, 8143080250, 58022725348, 413685226967, 3035994512259, 21816461282403, 157007597256407, 1140825200514746, 8225611070991142

Offset

1,1

Comments

Column 5 of A298230.

Links

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

Example

Some solutions for n=7
..0..1..1..1..0. .0..1..1..0..0. .0..0..1..1..0. .0..0..0..1..0
..0..1..1..0..1. .0..1..1..0..0. .0..0..1..1..0. .1..1..0..0..1
..0..0..1..0..0. .0..0..1..0..0. .1..1..1..0..0. .1..1..1..1..1
..1..0..1..0..0. .0..1..1..0..1. .0..0..1..0..0. .0..1..0..1..0
..0..1..1..1..0. .0..1..1..0..0. .0..0..0..1..1. .0..1..1..0..1
..0..0..1..0..0. .0..0..0..0..0. .0..1..1..1..1. .0..0..1..0..0
..1..0..0..0..1. .1..0..0..1..1. .1..0..1..0..0. .0..0..1..0..0

Crossrefs

Cf. A298230.

Sequence in context: A176674 A176694 A152612 * A298151 A299125 A299883

Adjacent sequences: A298224 A298225 A298226 * A298228 A298229 A298230

Keyword

nonn

Author

R. H. Hardin, Jan 15 2018

Status

approved