A299391 Number of nX6 0..1 arrays with every element equal to 0, 1, 3, 4, 6 or 8 king-move adjacent elements, with upper left element zero.

13, 73, 48, 243, 934, 2483, 11240, 48286, 252027, 1266960, 6311667, 36785859, 194581406, 1036790058, 5942171610, 32178015222, 175549569753, 988988477581, 5414044259800, 29794919553945, 166288246651728, 915135462699297

Offset

1,1

Comments

Column 6 of A299393.

Links

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

Example

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

Crossrefs

Cf. A299393.

Sequence in context: A297905 A298499 A298318 * A299192 A300028 A322478

Adjacent sequences: A299388 A299389 A299390 * A299392 A299393 A299394

Keyword

nonn

Author

R. H. Hardin, Feb 09 2018

Status

approved