A282591 Number of nX6 0..1 arrays with no 1 equal to more than two of its king-move neighbors, with the exception of exactly two elements.

0, 220, 28060, 855448, 30003220, 957470936, 28829389941, 848630437758, 24308348318637, 682719076871766, 18874574991350972, 514772312297966798, 13881066387416936463, 370667990433614779614, 9814133804386279987495

Offset

1,2

Comments

Column 6 of A282593.

Links

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

Example

Some solutions for n=3
..0..1..1..0..0..0. .1..0..0..1..0..0. .0..0..0..1..0..0. .0..1..0..0..0..0
..0..0..1..0..1..1. .1..1..1..0..0..1. .0..0..1..1..0..0. .1..0..1..0..0..1
..1..1..1..0..0..1. .1..0..0..0..0..0. .0..0..1..0..1..1. .0..1..1..0..0..0

Crossrefs

Cf. A282593.

Sequence in context: A107506 A140918 A049023 * A091756 A167825 A339680

Adjacent sequences: A282588 A282589 A282590 * A282592 A282593 A282594

Keyword

nonn

Author

R. H. Hardin, Feb 19 2017

Status

approved