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A297754
Number of 6Xn 0..1 arrays with every 1 horizontally, diagonally or antidiagonally adjacent to 1, 3 or 4 neighboring 1s.
1
1, 123, 4344, 29773, 290114, 6379211, 116064732, 1513886975, 21770613982, 360581868887, 5740308678921, 86254442205268, 1321260365864919, 20730220196496664, 322671941879842897, 4973758804599559075
OFFSET
1,2
COMMENTS
Row 6 of A297749.
LINKS
EXAMPLE
Some solutions for n=4
..0..1..1..1. .1..0..1..0. .0..0..0..1. .0..1..1..1. .1..0..1..0
..0..0..0..1. .1..1..1..0. .0..0..1..0. .0..1..0..0. .0..1..1..0
..0..0..0..0. .0..0..0..0. .1..0..0..0. .0..0..0..0. .0..0..0..0
..0..0..1..0. .0..0..0..0. .1..1..0..0. .0..1..0..0. .1..0..0..1
..0..0..1..1. .1..0..1..0. .1..0..0..0. .0..0..1..1. .1..1..1..0
..0..0..1..0. .1..1..0..0. .0..0..1..1. .0..1..0..0. .1..0..0..1
CROSSREFS
Cf. A297749.
Sequence in context: A297524 A163711 A293309 * A068239 A098683 A324435
KEYWORD
nonn
AUTHOR
R. H. Hardin, Jan 05 2018
STATUS
approved