A298054 Number of nX7 0..1 arrays with every element equal to 1, 2, 4 or 6 king-move adjacent elements, with upper left element zero.

8, 95, 63, 240, 422, 780, 1708, 3362, 6794, 14943, 29523, 61474, 128150, 264417, 548393, 1137867, 2348710, 4866530, 10091166, 20917294, 43349064, 89869896, 186296604, 386177081, 800695527, 1660420377, 3442732936, 7137995410

Offset

1,1

Comments

Column 7 of A298055.

Links

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

Example

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

Crossrefs

Cf. A298055.

Sequence in context: A080208 A297857 A298092 * A298887 A298659 A299611

Adjacent sequences: A298051 A298052 A298053 * A298055 A298056 A298057

Keyword

nonn

Author

R. H. Hardin, Jan 11 2018

Status

approved