A300313 Number of nX7 0..1 arrays with every element equal to 0, 1, 2, 4, 5, 6, 7 or 8 king-move adjacent elements, with upper left element zero.

64, 353, 1747, 41485, 1008622, 23451403, 543024998, 13524308534, 332995274077, 7989933814706, 194852895416301, 4772953154573753, 116000077155524086, 2822733986488474176, 68864301686782525379, 1677714968007630564471

Offset

1,1

Comments

Column 7 of A300314.

Links

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

Example

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

Crossrefs

Cf. A300314.

Sequence in context: A299014 A299805 A299681 * A137739 A281468 A302622

Adjacent sequences: A300310 A300311 A300312 * A300314 A300315 A300316

Keyword

nonn

Author

R. H. Hardin, Mar 02 2018

Status

approved