A298651 Number of nX6 0..1 arrays with every element equal to 1, 2, 3, 6 or 7 king-move adjacent elements, with upper left element zero.

5, 573, 1274, 4648, 18271, 75562, 291784, 1142188, 4518674, 17656883, 69095683, 271751608, 1068599426, 4200796398, 16523613182, 65016945420, 255906018679, 1007618786294, 3968688229186, 15635494589187, 61614746058306

Offset

1,1

Comments

Column 6 of A298653.

Links

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

Example

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

Crossrefs

Cf. A298653.

Sequence in context: A297821 A297991 A298844 * A299605 A185555 A093941

Adjacent sequences: A298648 A298649 A298650 * A298652 A298653 A298654

Keyword

nonn

Author

R. H. Hardin, Jan 24 2018

Status

approved