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A240033
Number of n X n 0..2 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 zero plus the sum of the elements diagonally to its northwest, modulo 3
0
2, 2, 16, 18, 154, 282, 1976, 5706, 42470, 147092, 1196210, 5215010, 48697758, 245354078, 2815029508, 16378986516
OFFSET
1,1
COMMENTS
Diagonal of A240039
EXAMPLE
Some solutions for n=3
..2..1..1....1..2..1....2..1..2....1..2..2....2..1..2....1..2..2....1..2..1
..1..0..0....2..0..0....1..0..0....2..0..1....1..0..0....2..0..0....2..0..0
..2..0..0....1..0..0....2..0..0....1..0..2....1..0..0....1..0..0....1..0..2
CROSSREFS
Sequence in context: A352348 A133922 A222954 * A088139 A152556 A113123
KEYWORD
nonn
AUTHOR
R. H. Hardin, Mar 31 2014
STATUS
approved