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A303894
Number of nX6 0..1 arrays with every element unequal to 1, 2, 3 or 4 king-move adjacent elements, with upper left element zero.
1
5, 1145, 3420, 39711, 200144, 1541443, 9758243, 68015993, 462257363, 3129826391, 21703155196, 147148586804, 1017951482338, 6966704502733, 47967810896265, 330173281171357, 2270469305923316, 15652931333829738, 107730579365994677
OFFSET
1,1
COMMENTS
Column 6 of A303896.
LINKS
EXAMPLE
Some solutions for n=5
..0..1..1..0..0..1. .0..1..1..1..0..1. .0..0..1..1..0..1. .0..1..1..0..0..1
..0..1..1..0..0..1. .0..0..1..1..1..0. .0..1..1..1..0..0. .0..0..1..1..0..0
..1..0..0..1..1..0. .1..0..0..0..0..1. .1..1..1..1..0..0. .0..0..0..1..1..0
..0..0..0..1..1..1. .1..0..0..0..1..0. .1..1..1..0..0..1. .1..0..0..1..1..0
..1..0..0..1..1..0. .0..0..1..1..1..1. .0..0..0..0..0..1. .1..1..0..1..1..1
CROSSREFS
Cf. A303896.
Sequence in context: A372705 A123266 A330391 * A305286 A304899 A316581
KEYWORD
nonn
AUTHOR
R. H. Hardin, May 02 2018
STATUS
approved