A299127 Number of nX7 0..1 arrays with every element equal to 0, 1, 3, 4, 5 or 7 king-move adjacent elements, with upper left element zero.

21, 348, 427, 20226, 132409, 2286535, 50126162, 761448901, 14747885320, 292184974732, 5319449303150, 102312136544858, 1991770170247881, 37605783844654553, 722670947723793458, 13939476383806855997

Offset

1,1

Comments

Column 7 of A299128.

Links

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

Example

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

Crossrefs

Cf. A299128.

Sequence in context: A318269 A298229 A298153 * A299885 A299051 A299813

Adjacent sequences: A299124 A299125 A299126 * A299128 A299129 A299130

Keyword

nonn

Author

R. H. Hardin, Feb 03 2018

Status

approved