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A317220
Number of nX6 0..1 arrays with every element unequal to 1, 2, 3, 4, 5, 7 or 8 king-move adjacent elements, with upper left element zero.
1
5, 1493, 40873, 1580822, 57448875, 2106680104, 77171164500, 2827889481366, 103616727948480, 3796796535097669, 139124318060053699, 5097884223715735117, 186800168025968954100, 6844861645491319379364, 250814219723168200221773
OFFSET
1,1
COMMENTS
Column 6 of A317222.
LINKS
EXAMPLE
Some solutions for n=5
..0..0..1..1..1..1. .0..0..0..1..0..1. .0..0..0..1..1..0. .0..0..0..1..1..0
..0..1..0..1..1..0. .0..1..1..0..0..0. .0..1..1..1..0..1. .0..1..1..0..0..1
..0..0..0..0..0..0. .0..0..0..1..0..1. .0..0..0..0..0..1. .0..0..0..1..0..1
..0..0..0..0..1..0. .0..0..0..1..1..1. .0..0..1..0..0..0. .0..0..1..0..1..0
..0..1..1..0..0..1. .0..1..1..0..1..0. .0..1..1..1..1..0. .0..1..0..1..0..1
CROSSREFS
Cf. A317222.
Sequence in context: A304425 A316280 A305959 * A305690 A317070 A316951
KEYWORD
nonn
AUTHOR
R. H. Hardin, Jul 23 2018
STATUS
approved