A298379 Number of nX5 0..1 arrays with every element equal to 0, 2, 3, 5 or 6 king-move adjacent elements, with upper left element zero.

1, 31, 30, 172, 852, 3271, 12982, 61188, 269075, 1128296, 5153385, 22703729, 99818765, 445053228, 1972816352, 8743331187, 38814180171, 172316989015, 764451545979, 3393127170381, 15061809206218, 66843755437502

Offset

1,2

Comments

Column 5 of A298382.

Links

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

Example

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

Crossrefs

Cf. A298382.

Sequence in context: A141529 A022987 A023473 * A299246 A291477 A056999

Adjacent sequences: A298376 A298377 A298378 * A298380 A298381 A298382

Keyword

nonn

Author

R. H. Hardin, Jan 18 2018

Status

approved