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A298650
Number of nX5 0..1 arrays with every element equal to 1, 2, 3, 6 or 7 king-move adjacent elements, with upper left element zero.
1
3, 166, 424, 1446, 5124, 18271, 62544, 215035, 739962, 2537660, 8744241, 30188614, 104165837, 359665578, 1242411171, 4292458468, 14835586385, 51288707980, 177340234374, 613288580624, 2121228689542, 7337686991133, 25384797504647
OFFSET
1,1
COMMENTS
Column 5 of A298653.
LINKS
EXAMPLE
Some solutions for n=5
..0..1..0..1..0. .0..1..0..1..0. .0..1..1..0..1. .0..0..1..0..1
..1..0..0..0..1. .1..0..0..0..1. .0..0..1..1..0. .1..1..1..1..0
..0..0..0..0..0. .0..0..0..0..0. .1..1..1..1..1. .1..1..1..1..1
..1..0..0..1..0. .1..0..0..1..0. .1..1..1..1..0. .0..0..1..1..0
..0..1..0..0..1. .1..0..0..1..1. .0..0..1..0..1. .1..1..1..0..1
CROSSREFS
Cf. A298653.
Sequence in context: A297820 A297990 A298843 * A299604 A100908 A180449
KEYWORD
nonn
AUTHOR
R. H. Hardin, Jan 24 2018
STATUS
approved