A299179 Number of nX7 0..1 arrays with every element equal to 0, 1, 2, 3, 6 or 7 king-move adjacent elements, with upper left element zero.

64, 3281, 5631, 22819, 105709, 488812, 2207509, 10286880, 48492179, 225721140, 1052511651, 4943137693, 23205542625, 108821827316, 511190051629, 2403886138964, 11305007633490, 53192247798072, 250461934195726

Offset

1,1

Comments

Column 7 of A299180.

Links

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

Example

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

Crossrefs

Cf. A299180.

Sequence in context: A281343 A298286 A299358 * A299941 A017439 A220744

Adjacent sequences: A299176 A299177 A299178 * A299180 A299181 A299182

Keyword

nonn

Author

R. H. Hardin, Feb 04 2018

Status

approved