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A317235
Number of nX5 0..1 arrays with every element unequal to 0, 1, 2, 4, 6, 7 or 8 king-move adjacent elements, with upper left element zero.
1
16, 64, 211, 674, 4798, 24487, 112675, 602717, 3142280, 15736309, 80763353, 416422679, 2125195114, 10872692496, 55771924996, 285544506235, 1461717204424, 7488008711842, 38350390977946, 196383133324671, 1005774393333186
OFFSET
1,1
COMMENTS
Column 5 of A317238.
LINKS
EXAMPLE
Some solutions for n=5
..0..1..0..0..1. .0..0..1..1..1. .0..0..1..1..1. .0..0..0..1..0
..1..0..0..0..1. .1..1..1..0..1. .1..1..1..0..1. .0..0..1..0..0
..0..0..0..0..0. .0..0..1..0..1. .1..1..1..1..0. .0..0..0..0..0
..0..1..0..0..0. .0..0..0..0..0. .1..1..1..0..0. .0..0..0..0..1
..0..0..0..0..0. .0..0..0..0..0. .1..1..0..1..0. .1..1..0..1..0
CROSSREFS
Cf. A317238.
Sequence in context: A059165 A212506 A212512 * A375573 A255661 A073718
KEYWORD
nonn
AUTHOR
R. H. Hardin, Jul 24 2018
STATUS
approved