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A305682
Number of nX5 0..1 arrays with every element unequal to 0, 2, 3, 4, 5 or 6 king-move adjacent elements, with upper left element zero.
1
1, 82, 818, 17947, 383910, 8417922, 185389115, 4094434997, 90512430926, 2001749650686, 44277953110500, 979481824603856, 21667974875091016, 479342236614803683, 10604136569952695750, 234588036917706798440
OFFSET
1,2
COMMENTS
Column 5 of A305685.
LINKS
EXAMPLE
Some solutions for n=5
..0..1..0..0..0. .0..1..0..0..0. .0..1..0..0..0. .0..0..0..1..0
..1..1..1..1..1. .1..1..1..1..1. .1..1..1..1..1. .1..1..0..1..0
..1..0..0..1..1. .0..1..0..0..1. .0..0..0..1..1. .1..0..0..0..1
..0..1..0..0..0. .1..0..0..0..1. .0..1..1..0..0. .0..1..1..0..0
..1..0..0..1..1. .0..1..1..1..0. .0..1..0..0..1. .1..0..0..1..1
CROSSREFS
Cf. A305685.
Sequence in context: A186688 A002309 A128959 * A317062 A230394 A316929
KEYWORD
nonn
AUTHOR
R. H. Hardin, Jun 08 2018
STATUS
approved