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A277770
Number of 5Xn 0..2 arrays with every element equal to some element at offset (-1,-1) (-1,0) (-1,1) (0,-1) (0,1) or (1,0) both plus 1 mod 3 and minus 1 mod 3, with new values introduced in order 0..2.
1
0, 56, 3666, 270291, 20049229, 1487830718, 110036582827, 8144355400488, 602835463794197, 44616311792079721, 3302197502743906336, 244405001824291326112, 18089091210686721809130, 1338824653239265489456655
OFFSET
1,2
COMMENTS
Row 5 of A277767.
LINKS
EXAMPLE
Some solutions for n=3
..0..1..2. .0..1..2. .0..1..2. .0..1..2. .0..1..2. .0..1..2. .0..1..0
..2..2..0. .2..1..0. .2..2..0. .2..1..0. .2..0..0. .2..0..0. .2..2..2
..1..0..1. .2..1..1. .0..1..2. .0..2..0. .2..1..2. .1..1..0. .1..0..1
..1..2..1. .0..1..2. .0..2..1. .2..2..1. .0..1..0. .0..0..2. .2..0..2
..0..0..1. .1..2..0. .2..1..0. .1..0..2. .0..2..2. .2..1..0. .1..1..2
CROSSREFS
Cf. A277767.
Sequence in context: A358115 A216704 A278724 * A239816 A220108 A003747
KEYWORD
nonn
AUTHOR
R. H. Hardin, Oct 29 2016
STATUS
approved