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A241277
Number of n X n 0..3 arrays with no element equal to one plus the sum of elements to its left or zero plus the sum of the elements above it or one plus the sum of the elements diagonally to its northwest or one plus the sum of the elements antidiagonally to its northeast, modulo 4
0
2, 3, 41, 773, 20717, 15616828, 2949336562
OFFSET
1,1
COMMENTS
Diagonal of A241283
EXAMPLE
Some solutions for n=4
..3..3..2..3....3..2..3..3....3..3..2..3....3..2..3..3....3..2..3..3
..2..1..3..2....2..1..1..2....2..1..3..2....2..1..1..2....0..3..1..2
..2..2..2..0....2..0..2..3....3..2..0..0....0..2..2..2....2..0..1..3
..2..0..0..0....2..0..1..2....2..1..2..3....2..2..0..0....0..2..2..2
CROSSREFS
Sequence in context: A094714 A200817 A042475 * A123993 A351820 A271331
KEYWORD
nonn
AUTHOR
R. H. Hardin, Apr 18 2014
STATUS
approved