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A304929
Number of nX6 0..1 arrays with every element unequal to 0, 1, 3, 5 or 7 king-move adjacent elements, with upper left element zero.
1
13, 105, 101, 374, 1034, 2653, 6426, 16855, 42256, 110818, 293243, 759597, 1962550, 5113934, 13247520, 34363929, 89475407, 232484569, 603475499, 1568532379, 4074861880, 10582600325, 27499026562, 71450610025, 185607848522
OFFSET
1,1
COMMENTS
Column 6 of A304931.
LINKS
EXAMPLE
Some solutions for n=5
..0..0..0..0..1..0. .0..1..1..1..1..1. .0..0..1..1..0..0. .0..0..0..0..1..1
..0..0..0..0..0..0. .1..1..1..1..1..1. .0..1..1..1..1..0. .0..0..0..0..0..1
..0..0..0..0..0..0. .1..1..1..1..1..0. .1..1..1..1..1..1. .0..0..0..0..0..0
..0..0..0..0..0..1. .1..1..1..1..0..0. .1..1..1..1..1..1. .0..0..0..0..0..0
..1..0..0..0..1..1. .1..1..1..0..0..0. .1..0..1..1..1..0. .1..0..0..0..0..1
CROSSREFS
Cf. A304931.
Sequence in context: A000590 A052065 A303967 * A041316 A304667 A306170
KEYWORD
nonn
AUTHOR
R. H. Hardin, May 21 2018
STATUS
approved