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A266017
Number of 7 X n integer arrays with each element equal to the number of horizontal and antidiagonal neighbors equal to itself.
1
1, 1, 102, 44, 483, 1561, 10708, 62684, 145344, 253394, 1663567, 7253158, 20436396, 81005594, 346203546, 1298613540, 4729960051, 18275111422, 70440272974, 267189128408, 1008549687107, 3827029447559, 14623357809480, 55686510400311
OFFSET
1,3
COMMENTS
Row 7 of A266012.
LINKS
EXAMPLE
Some solutions for n=4
..0..1..1..0....0..1..2..2....0..1..2..2....0..1..1..0....0..2..2..1
..0..2..2..1....1..2..2..0....1..2..2..0....0..2..2..0....2..2..1..0
..2..2..1..0....0..1..1..0....0..1..1..0....2..2..1..0....0..2..2..0
..0..2..2..0....0..2..2..0....0..2..2..1....0..1..2..2....2..2..1..0
..2..2..1..1....2..2..1..0....2..2..1..0....0..2..2..0....0..1..2..2
..0..2..2..0....0..1..2..2....0..2..2..1....0..1..2..2....0..2..2..0
..2..2..1..1....0..2..2..0....2..2..1..0....1..2..2..0....0..1..1..0
CROSSREFS
Cf. A266012.
Sequence in context: A325775 A204749 A244949 * A144469 A009101 A031962
KEYWORD
nonn
AUTHOR
R. H. Hardin, Dec 20 2015
STATUS
approved