A300144 Number of nX6 0..1 arrays with every element equal to 1, 3, 4, 5, 6, 7 or 8 king-move adjacent elements, with upper left element zero.

1, 88, 130, 5368, 78147, 1048462, 21602016, 399714825, 6588098950, 123529816794, 2286366119749, 40363480307114, 737000196135270, 13502984306561220, 243309684017166945, 4419256858215253019, 80521431376658914078

Offset

1,2

Comments

Column 6 of A300146.

Links

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

Example

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

Crossrefs

Cf. A300146.

Sequence in context: A174651 A225136 A039445 * A247528 A346774 A249555

Adjacent sequences: A300141 A300142 A300143 * A300145 A300146 A300147

Keyword

nonn

Author

R. H. Hardin, Feb 26 2018

Status

approved