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A283725
Number of nX7 0..1 arrays with no 1 equal to more than two of its horizontal, diagonal and antidiagonal neighbors, with the exception of exactly one element.
1
0, 4220, 369328, 25260000, 1590274565, 94357463834, 5410290101514, 302490564406270, 16600142770401845, 897968848303855396, 48020384269733267214, 2544060241155707255130, 133737173204786854881261
OFFSET
1,2
COMMENTS
Column 7 of A283726.
LINKS
EXAMPLE
Some solutions for n=2
..0..1..1..0..1..1..1. .0..0..1..1..1..1..0. .1..0..0..0..0..1..1
..1..0..0..0..1..0..1. .0..1..1..0..1..0..0. .1..1..1..1..0..0..0
CROSSREFS
Cf. A283726.
Sequence in context: A250947 A291136 A067140 * A109488 A245316 A046335
KEYWORD
nonn
AUTHOR
R. H. Hardin, Mar 15 2017
STATUS
approved