A317116 Number of nX6 0..1 arrays with every element unequal to 0, 1, 2, 3, 4, 7 or 8 king-move adjacent elements, with upper left element zero.

32, 1576, 16686, 273221, 4237829, 67247490, 1080066752, 17278502991, 277268412729, 4444623993270, 71277941310547, 1142951091860127, 18327895848430589, 293898746260559599, 4712829796840795691

Offset

1,1

Comments

Column 6 of A317118.

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

Crossrefs

Cf. A317118.

Sequence in context: A281953 A316181 A305767 * A305528 A317002 A316820

Adjacent sequences: A317113 A317114 A317115 * A317117 A317118 A317119

Keyword

nonn

Author

R. H. Hardin, Jul 21 2018

Status

approved