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A240186
Number of n X n 0..3 arrays with no element equal to zero plus the sum of elements to its left or one plus the sum of the elements above it or three plus the sum of the elements diagonally to its northwest, modulo 4.
0
1, 5, 37, 771, 91879, 28061567, 43398047802
OFFSET
1,2
COMMENTS
Diagonal of A240192.
EXAMPLE
Some solutions for n=4
..2..0..0..0....2..0..0..0....2..0..0..0....2..0..0..0....2..0..0..0
..1..2..0..2....1..3..2..0....1..0..0..0....1..0..2..2....1..3..2..0
..2..1..0..2....2..1..1..3....1..3..3..0....1..2..2..2....2..1..2..0
..1..2..0..2....1..0..3..2....2..1..2..2....2..1..0..0....1..2..2..0
CROSSREFS
Cf. A240192.
Sequence in context: A336241 A180275 A257952 * A003213 A166851 A090439
KEYWORD
nonn
AUTHOR
R. H. Hardin, Apr 02 2014
STATUS
approved