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A265986
Number of n X n integer arrays with each element equal to the number of horizontal and antidiagonal neighbors not equal to itself.
0
1, 1, 6, 2, 1, 5, 422, 243, 299, 1712, 91080, 155636, 749259, 5409278, 253679426, 2921924313, 9771922764942
OFFSET
1,3
COMMENTS
Diagonal of A265991.
EXAMPLE
Some solutions for n=6
..1..2..2..1..1..2....1..2..2..1..1..2....1..2..2..1..1..2....0..0..0..0..0..0
..1..1..1..1..4..2....1..1..1..1..4..1....1..1..1..1..4..2....0..0..0..0..0..0
..1..4..1..1..1..1....1..4..1..1..1..2....1..4..1..1..1..1....0..0..0..0..0..0
..2..1..1..1..4..1....2..1..1..1..4..1....1..1..1..1..4..1....0..0..0..0..0..0
..1..4..1..1..1..1....1..4..1..1..1..1....2..4..1..1..1..1....0..0..0..0..0..0
..2..1..1..2..2..1....2..1..1..2..2..1....2..1..1..2..2..1....0..0..0..0..0..0
CROSSREFS
Cf. A265991.
Sequence in context: A224518 A375741 A363684 * A334942 A217909 A334943
KEYWORD
nonn
AUTHOR
R. H. Hardin, Dec 19 2015
STATUS
approved