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A305046
Number of nX7 0..1 arrays with every element unequal to 0, 2, 3, 6 or 7 king-move adjacent elements, with upper left element zero.
1
1, 99, 40, 25, 337, 42, 116, 6542, 3137, 4862, 144931, 173351, 322085, 3811451, 7402648, 16742048, 113783711, 289925364, 754094153, 3729932732, 10995324242, 31408763906, 129954407027, 412346112035, 1252076565322, 4694829609193
OFFSET
1,2
COMMENTS
Column 7 of A305047.
LINKS
EXAMPLE
Some solutions for n=5
..0..1..1..0..1..0..0. .0..1..0..0..1..0..0. .0..0..1..1..0..0..1
..1..0..0..1..0..1..1. .1..1..0..1..1..0..0. .0..0..1..0..0..1..0
..1..1..1..1..1..1..1. .0..0..0..0..0..0..0. .0..0..0..0..0..1..0
..1..0..1..1..0..1..1. .0..0..0..0..1..0..0. .0..0..1..0..1..0..0
..0..1..0..0..1..0..0. .1..1..1..1..0..1..1. .1..1..0..1..0..0..1
CROSSREFS
Cf. A305047.
Sequence in context: A309232 A360376 A304140 * A316732 A033419 A110397
KEYWORD
nonn
AUTHOR
R. H. Hardin, May 24 2018
STATUS
approved