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A194500
Number of lower triangles of an n X n 0..3 array with each element unequal to the sum mod 4 of its horizontal and vertical neighbors
0
3, 27, 776, 59052, 14348907, 10460353203, 22876792454961, 150094717239776832
OFFSET
1,1
COMMENTS
Column 3 of A194505
EXAMPLE
Some solutions for 3X3
..0......1......1......1......2......1......3......2......2......1......1
..1.3....3.1....0.3....2.0....3.2....0.0....1.3....1.3....0.2....0.3....3.3
..1.1.3..2.0.2..1.2.3..3.0.2..1.1.3..2.3.0..1.1.2..2.0.1..2.3.1..3.2.3..0.3.1
CROSSREFS
Sequence in context: A138525 A185149 A326086 * A012505 A331439 A085521
KEYWORD
nonn
AUTHOR
R. H. Hardin Aug 27 2011
STATUS
approved