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A251915
Number of (n+2)X(n+2) 0..3 arrays with every 3X3 subblock row and column sum 2 4 5 or 7 and every diagonal and antidiagonal sum not 2 4 5 or 7
0
1194, 3054, 6086, 25882, 340800, 6752446, 249690188, 13251150646, 1129132756936, 134581826099074, 26074659792166044, 7042204562689607110, 3076055248250450622008, 1874713355693280173742202
OFFSET
1,1
COMMENTS
Diagonal of A251923
EXAMPLE
Some solutions for n=4
..2..3..2..0..2..3....1..0..1..3..1..0....3..2..0..2..3..2....3..1..3..1..3..1
..3..2..0..2..3..2....3..1..3..1..3..1....2..0..2..0..2..3....1..0..1..3..1..0
..2..0..2..0..2..0....1..3..1..0..1..3....0..2..0..2..0..2....3..1..3..1..3..1
..0..2..3..2..0..2....3..1..3..1..0..1....2..0..2..3..2..0....1..3..1..3..1..3
..2..3..2..0..2..0....1..3..1..3..1..3....0..2..3..2..0..2....0..1..3..1..0..1
..2..2..0..2..0..2....3..1..3..1..3..1....2..0..2..0..2..0....1..3..1..3..1..3
CROSSREFS
Sequence in context: A103172 A251923 A251916 * A166221 A096955 A113898
KEYWORD
nonn
AUTHOR
R. H. Hardin, Dec 11 2014
STATUS
approved