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A318080
Number of nX6 0..1 arrays with every element unequal to 0, 1, 3 or 5 horizontally, vertically or antidiagonally adjacent elements, with upper left element zero.
1
13, 18, 32, 64, 126, 314, 699, 1778, 4262, 10254, 25322, 63395, 158636, 392649, 973186, 2419617, 6047372, 15095553, 37607858, 93596239, 233272071, 581969505, 1451785788, 3618976256, 9020094130, 22487625577, 56080370254, 139848730677
OFFSET
1,1
COMMENTS
Column 6 of A318082.
LINKS
EXAMPLE
Some solutions for n=5
..0..0..0..0..1..1. .0..0..1..0..0..1. .0..1..1..1..1..0. .0..0..0..1..0..0
..0..0..0..0..0..1. .1..1..0..0..0..0. .0..0..1..1..1..1. .0..1..1..0..0..0
..0..0..0..0..0..0. .0..1..0..0..0..0. .0..0..0..1..1..1. .0..0..1..0..0..0
..0..0..0..1..1..1. .0..0..0..0..0..0. .1..1..1..1..1..1. .0..0..0..0..0..0
..0..1..1..1..0..0. .0..0..0..0..0..0. .0..1..1..1..1..1. .0..0..0..0..0..0
CROSSREFS
Cf. A318082.
Sequence in context: A131019 A317771 A037158 * A066469 A318348 A197704
KEYWORD
nonn
AUTHOR
R. H. Hardin, Aug 15 2018
STATUS
approved