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A239850
Number of n X n 0..3 arrays with no element equal to zero 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, 44, 203, 4549, 176208, 9885999, 14757679494
OFFSET
1,1
COMMENTS
Diagonal of A239858
EXAMPLE
Some solutions for n=4
..3..2..3..3....2..3..3..2....2..3..3..2....2..3..3..2....2..3..3..2
..2..1..2..2....3..1..1..3....3..1..1..3....3..1..1..3....3..1..2..3
..3..0..0..2....3..1..2..0....3..1..2..0....3..1..1..3....2..3..2..0
..3..2..2..0....2..3..3..3....2..3..0..3....3..2..3..3....2..1..2..3
CROSSREFS
Sequence in context: A356565 A255969 A329945 * A354613 A375687 A355842
KEYWORD
nonn
AUTHOR
R. H. Hardin, Mar 28 2014
STATUS
approved