A298061 Number of nX6 0..1 arrays with every element equal to 1, 3, 4 or 6 king-move adjacent elements, with upper left element zero.

1, 53, 13, 42, 402, 474, 1753, 11369, 31565, 166746, 877198, 3714185, 20100647, 103031226, 490299990, 2602111282, 13295932390, 65804786123, 343554310279, 1755269549520, 8830734158515, 45657018005895, 233312712729647

Offset

1,2

Comments

Column 6 of A298063.

Links

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

Example

Some solutions for n=7
..0..0..1..1..0..0. .0..1..1..0..1..1. .0..0..1..1..0..0. .0..0..1..1..0..0
..1..1..1..1..0..0. .0..1..1..0..1..1. .1..1..1..1..1..1. .1..1..1..1..1..1
..0..0..0..0..1..1. .0..0..0..1..0..0. .0..0..0..0..0..0. .0..0..1..1..0..0
..1..1..0..0..1..1. .0..1..1..0..1..1. .0..0..1..1..0..0. .0..0..1..1..0..0
..1..1..0..0..0..0. .0..0..0..1..0..0. .1..1..1..1..1..1. .1..1..1..1..1..1
..1..0..0..0..1..1. .0..1..1..0..1..1. .0..0..0..0..0..0. .0..0..0..0..0..0
..0..1..0..0..1..1. .0..1..1..0..1..1. .0..0..1..1..0..0. .0..0..1..1..0..0

Crossrefs

Cf. A298063.

Sequence in context: A143428 A143385 A231426 * A297984 A298633 A298710

Adjacent sequences: A298058 A298059 A298060 * A298062 A298063 A298064

Keyword

nonn

Author

R. H. Hardin, Jan 11 2018

Status

approved