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A316303
Number of nX7 0..1 arrays with every element unequal to 0, 1, 2, 4, 6 or 8 king-move adjacent elements, with upper left element zero.
1
64, 432, 572, 2929, 19185, 97864, 608947, 3605691, 21632912, 130126938, 786109991, 4751981159, 28759129674, 174064729330, 1053884433839, 6381829345230, 38648680713625, 234069146890789, 1417642335234655, 8586113353402760
OFFSET
1,1
COMMENTS
Column 7 of A316304.
LINKS
EXAMPLE
Some solutions for n=5
..0..0..0..0..0..0..0. .0..1..1..0..0..0..0. .0..0..0..0..1..1..1
..1..0..0..1..0..0..0. .0..0..0..0..0..1..0. .0..0..0..0..1..1..1
..0..1..0..0..0..1..0. .0..0..0..0..1..0..1. .0..0..0..1..1..1..1
..1..1..1..0..0..0..0. .1..0..0..0..1..0..0. .0..0..1..0..1..1..1
..1..0..0..0..0..0..0. .0..1..0..0..0..1..0. .0..0..1..0..1..1..1
CROSSREFS
Cf. A316304.
Sequence in context: A303799 A305244 A304478 * A304847 A316544 A306059
KEYWORD
nonn
AUTHOR
R. H. Hardin, Jun 29 2018
STATUS
approved