A306133 Number of nX5 0..1 arrays with every element unequal to 0, 2, 3, 4, 6 or 7 king-move adjacent elements, with upper left element zero.

1, 82, 240, 2922, 31843, 267988, 2889140, 29281552, 289967701, 2972720307, 30091767321, 304406786632, 3091992959174, 31341774355331, 317778000686626, 3223336785281965, 32685713823934867, 331470578285123739

Offset

1,2

Comments

Column 5 of A306136.

Links

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

Example

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

Crossrefs

Cf. A306136.

Sequence in context: A304548 A316373 A309033 * A317268 A258739 A048513

Adjacent sequences: A306130 A306131 A306132 * A306134 A306135 A306136

Keyword

nonn

Author

R. H. Hardin, Jun 22 2018

Status

approved