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A281608
Number of 5Xn 0..2 arrays with no element equal to more than one of its horizontal, diagonal or antidiagonal neighbors and with new values introduced in order 0 sequentially upwards.
1
41, 1617, 12413, 203276, 3401430, 52899445, 839574485, 13329701847, 211084448862, 3344465302550, 52990220564149, 839547337612225, 13301641083138936, 210748236247015012, 3339047332719365760
OFFSET
1,1
COMMENTS
Row 5 of A281605.
LINKS
EXAMPLE
Some solutions for n=3
..0..0..1. .0..1..2. .0..1..0. .0..1..2. .0..1..2. .0..1..1. .0..1..0
..2..1..2. .1..2..0. .0..1..2. .1..2..0. .2..0..2. .0..2..0. .0..1..2
..2..0..2. .0..2..1. .2..1..2. .1..2..1. .2..0..1. .0..2..0. .0..2..1
..1..0..1. .0..1..0. .1..0..2. .0..2..0. .0..2..1. .1..2..1. .0..2..0
..1..0..1. .0..2..2. .1..0..2. .0..1..1. .0..2..0. .1..0..1. .1..2..1
CROSSREFS
Cf. A281605.
Sequence in context: A163050 A305863 A180667 * A162878 A163224 A163677
KEYWORD
nonn
AUTHOR
R. H. Hardin, Jan 25 2017
STATUS
approved