A299392 Number of nX7 0..1 arrays with every element equal to 0, 1, 3, 4, 6 or 8 king-move adjacent elements, with upper left element zero.

21, 203, 94, 1086, 6254, 11240, 112188, 649720, 3226442, 27461474, 184057173, 1295139264, 10376344402, 75939708353, 578760825600, 4550466572155, 34515745744066, 267566986515096, 2089940532221191, 16076548661636039

Offset

1,1

Comments

Column 7 of A299393.

Links

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

Example

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

Crossrefs

Cf. A299393.

Sequence in context: A297906 A298500 A298319 * A299193 A300029 A339521

Adjacent sequences: A299389 A299390 A299391 * A299393 A299394 A299395

Keyword

nonn

Author

R. H. Hardin, Feb 09 2018

Status

approved