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A252320
Number of (n+2)X(7+2) 0..3 arrays with every 3X3 subblock row, column, diagonal and antidiagonal sum not equal to 0 1 3 6 or 7
1
56052, 25875, 214325, 1741936, 14105723, 115183853, 937981280, 7634090167, 62282796267, 507708324342, 4135550419263, 33696297343761, 274629581667992, 2238121992115863, 18238035152920308, 148617809035822492
OFFSET
1,1
COMMENTS
Column 7 of A252321
LINKS
EXAMPLE
Some solutions for n=2
..2..3..3..3..3..3..3..3..3....3..3..3..3..2..3..3..3..2
..3..3..3..3..3..3..3..3..2....3..2..3..3..3..3..3..3..3
..3..3..3..2..3..3..3..3..3....3..3..3..3..3..3..3..2..3
..2..3..3..3..3..3..3..2..3....3..3..3..3..3..3..3..3..3
CROSSREFS
Sequence in context: A229436 A022224 A230336 * A252020 A360188 A031655
KEYWORD
nonn
AUTHOR
R. H. Hardin, Dec 16 2014
STATUS
approved