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A281652
Number of nX6 0..2 arrays with no element equal to more than one of its horizontal, diagonal or antidiagonal neighbors, with the exception of exactly one element, and with new values introduced in order 0 sequentially upwards.
1
28, 10512, 519656, 23075928, 955490042, 37763465272, 1449940771656, 54481157985120, 2013987013843948, 73499046502446216, 2654628744412422502, 95064295609902663936, 3380059487036411031246, 119451269294771081739640
OFFSET
1,1
COMMENTS
Column 6 of A281653.
LINKS
EXAMPLE
Some solutions for n=2
..0..1..2..2..1..0. .0..1..0..1..0..1. .0..1..0..2..1..1. .0..1..2..0..1..2
..2..0..1..2..0..1. .1..2..0..2..1..1. .1..2..1..0..2..0. .0..1..0..0..2..0
CROSSREFS
Cf. A281653.
Sequence in context: A222018 A283891 A283892 * A221691 A159415 A209177
KEYWORD
nonn
AUTHOR
R. H. Hardin, Jan 26 2017
STATUS
approved