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A297635
Number of nX6 0..1 arrays with every 1 horizontally, diagonally or antidiagonally adjacent to 0, 2 or 3 neighboring 1s.
1
21, 552, 6548, 108928, 2077060, 36084211, 659362756, 12330890209, 229556423760, 4305910706389, 81104095131136, 1528711091052233, 28853556462878487, 545043044569991407, 10299246884035929292, 194672285485252296281
OFFSET
1,1
COMMENTS
Column 6 of A297637.
LINKS
EXAMPLE
Some solutions for n=4
..0..0..0..1..1..1. .1..0..0..0..1..0. .1..0..0..0..0..1. .1..0..0..1..0..1
..0..0..0..0..1..0. .1..0..0..0..0..0. .1..0..0..0..0..1. .0..0..0..0..0..0
..0..1..0..0..1..1. .1..0..0..1..0..1. .0..0..0..0..0..0. .1..0..0..1..0..0
..0..1..0..1..1..1. .1..0..0..0..0..0. .0..1..0..1..0..1. .0..0..0..0..0..1
CROSSREFS
Cf. A297637.
Sequence in context: A080483 A015255 A034789 * A292062 A194022 A183730
KEYWORD
nonn
AUTHOR
R. H. Hardin, Jan 02 2018
STATUS
approved