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A305250
Number of nX6 0..1 arrays with every element unequal to 0, 1, 3, 4 or 8 king-move adjacent elements, with upper left element zero.
1
13, 61, 65, 163, 439, 1149, 2985, 8254, 22801, 62473, 173206, 483696, 1351172, 3787817, 10653872, 29999284, 84591982, 238789052, 674640909, 1907222785, 5394518268, 15264144917, 43204286796, 122316777218, 346357487746
OFFSET
1,1
COMMENTS
Column 6 of A305252.
LINKS
EXAMPLE
Some solutions for n=5
..0..0..0..0..0..1. .0..0..0..1..0..1. .0..1..1..1..1..0. .0..0..0..0..0..0
..0..0..0..0..0..0. .0..0..1..1..0..0. .1..1..1..1..1..1. .1..0..0..0..0..0
..0..0..1..0..0..0. .0..1..1..1..0..0. .1..1..1..1..1..1. .1..1..0..0..0..0
..0..0..0..0..0..0. .1..1..1..1..0..0. .1..1..1..0..1..1. .1..1..0..1..0..0
..0..1..1..1..0..0. .1..1..1..0..1..0. .1..1..1..1..1..1. .0..1..0..0..0..0
CROSSREFS
Cf. A305252.
Sequence in context: A303806 A304853 A343538 * A304542 A228558 A316550
KEYWORD
nonn
AUTHOR
R. H. Hardin, May 28 2018
STATUS
approved