A298506 Number of nX6 0..1 arrays with every element equal to 0, 2, 3, 4 or 7 king-move adjacent elements, with upper left element zero.

1, 301, 493, 6063, 86979, 1091801, 16092678, 225171354, 3223061387, 46174809917, 659093090821, 9437775063057, 135040978679593, 1932379244052466, 27655329025458746, 395773347021904471, 5664028208790283929

Offset

1,2

Comments

Column 6 of A298508.

Links

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

Example

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

Crossrefs

Cf. A298508.

Sequence in context: A004225 A004226 A297913 * A282769 A256101 A070192

Adjacent sequences: A298503 A298504 A298505 * A298507 A298508 A298509

Keyword

nonn

Author

R. H. Hardin, Jan 20 2018

Status

approved