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A317813
Number of nX6 0..1 arrays with every element unequal to 0, 2 or 3 horizontally, vertically or antidiagonally adjacent elements, with upper left element zero.
1
1, 10, 8, 56, 94, 142, 434, 1071, 2279, 6087, 15953, 40210, 104488, 270430, 701710, 1825318, 4749330, 12368352, 32279336, 84388645, 220794188, 577879166, 1513375097, 3965597997, 10397097617, 27277536409, 71596450975, 187986384248
OFFSET
1,2
COMMENTS
Column 6 of A317815.
LINKS
EXAMPLE
Some solutions for n=5
..0..0..1..0..0..0. .0..1..0..1..0..0. .0..1..0..0..0..1. .0..0..0..1..0..1
..0..1..1..0..0..0. .1..0..0..1..1..1. .1..1..0..0..1..0. .0..0..1..1..0..0
..1..1..1..1..1..1. .1..0..1..1..0..0. .0..1..1..1..1..0. .0..1..1..1..0..1
..0..0..0..1..1..0. .0..0..1..0..0..1. .0..1..0..0..1..1. .1..1..1..0..0..1
..0..0..0..1..0..0. .1..0..1..0..1..0. .1..0..0..0..1..0. .0..0..1..0..1..0
CROSSREFS
Cf. A317815.
Sequence in context: A065691 A147974 A213553 * A038310 A318421 A280902
KEYWORD
nonn
AUTHOR
R. H. Hardin, Aug 07 2018
STATUS
approved