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A266061
Number of 7Xn integer arrays with each element equal to the number of horizontal and antidiagonal neighbors less than or equal to itself.
0
1, 18711, 660, 3922630, 66932934348, 17488967178845, 7819198018954698, 10484016801435669311, 10832285455576819877387, 8361971076554434945659918, 7140195547280432492606291169, 6567534043008191408279490228815
OFFSET
1,2
COMMENTS
Row 7 of A266055.
EXAMPLE
Some solutions for n=3
..1..0..2....1..0..2....1..0..2....0..3..1....1..1..2....1..0..1....0..1..2
..2..1..0....2..1..0....2..0..2....1..0..2....2..1..2....1..4..1....2..0..2
..2..1..2....2..1..2....2..0..2....2..1..2....0..1..2....1..0..1....2..1..0
..2..0..2....2..0..2....2..0..2....0..1..2....2..1..2....1..4..0....2..1..2
..2..1..2....2..0..2....2..0..2....2..0..2....0..1..2....0..4..1....2..0..2
..0..1..2....2..0..2....2..0..2....2..0..2....2..0..1....1..0..2....2..0..2
..2..0..1....2..1..0....2..0..1....2..1..1....1..3..0....2..0..1....2..1..1
CROSSREFS
Cf. A266055.
Sequence in context: A237700 A248065 A283934 * A267028 A226150 A081416
KEYWORD
nonn
AUTHOR
R. H. Hardin, Dec 20 2015
STATUS
approved