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A265997
Number of 7Xn integer arrays with each element equal to the number of horizontal and antidiagonal neighbors not equal to itself.
1
1, 1, 182, 21, 1, 101, 422, 182, 157, 705, 1843, 2314, 4008, 10135, 19799, 33914, 65289, 137630, 279692, 520563, 1024841, 2188861, 4505552, 9236561, 20249904, 46319712, 105176183, 245657647, 607107735, 1544002056, 3915562512, 10204790125
OFFSET
1,3
COMMENTS
Row 7 of A265991.
LINKS
EXAMPLE
Some solutions for n=4
..1..2..2..1....1..3..1..1....1..3..1..1....1..3..1..1....1..3..1..1
..1..1..1..1....1..1..4..2....1..1..4..2....1..1..3..2....1..1..4..2
..1..3..3..1....1..3..3..1....1..3..3..1....1..3..4..2....1..3..3..2
..1..1..1..1....2..4..1..1....1..1..1..1....2..3..3..2....2..4..3..2
..1..3..3..1....1..1..3..1....1..4..3..1....2..4..3..1....2..3..4..1
..2..4..1..1....1..3..1..1....2..3..1..1....2..3..1..1....1..1..1..1
..1..1..3..1....1..1..3..1....1..1..3..1....1..1..3..1....1..2..2..1
CROSSREFS
Cf. A265991.
Sequence in context: A066626 A185824 A324271 * A204378 A054572 A054985
KEYWORD
nonn
AUTHOR
R. H. Hardin, Dec 19 2015
STATUS
approved