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A281651
Number of nX5 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
8, 2128, 67884, 1887730, 48871479, 1205962480, 28906723792, 677956602812, 15640786492090, 356203262306048, 8028074180509946, 179390514013544068, 3979861287645844782, 87757822187992152076, 1924969472275395326566
OFFSET
1,1
COMMENTS
Column 5 of A281653.
LINKS
EXAMPLE
Some solutions for n=3
..0..1..0..0..2. .0..1..2..1..0. .0..1..0..1..0. .0..1..0..1..0
..2..2..0..1..0. .1..0..2..1..0. .0..1..2..2..2. .1..0..0..1..0
..1..1..0..2..0. .0..2..1..0..2. .1..0..2..0..1. .1..2..0..1..0
CROSSREFS
Cf. A281653.
Sequence in context: A139298 A004819 A001375 * A189308 A300597 A323588
KEYWORD
nonn
AUTHOR
R. H. Hardin, Jan 26 2017
STATUS
approved