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A252456
Number of (n+2)X(7+2) 0..3 arrays with every 3X3 subblock row, column, diagonal and antidiagonal sum not equal to 0 2 4 6 or 7
1
9013, 56643, 464384, 3675259, 29527662, 240708592, 1956458824, 15909752456, 129736526156, 1057338390851, 8612567396378, 70179825074444, 571993707723937, 4661686891303170, 37989961554799072, 309598723190609387
OFFSET
1,1
COMMENTS
Column 7 of A252457
LINKS
EXAMPLE
Some solutions for n=2
..3..2..3..3..3..3..3..2..3....3..2..3..3..3..3..3..3..3
..3..3..3..3..3..2..3..3..3....3..3..3..3..3..3..3..3..3
..3..3..3..3..3..3..3..3..2....2..3..3..3..2..3..3..2..3
..3..3..3..3..2..3..3..3..3....3..3..3..3..3..3..3..3..3
CROSSREFS
Sequence in context: A102484 A295457 A359845 * A196994 A250828 A031593
KEYWORD
nonn
AUTHOR
R. H. Hardin, Dec 17 2014
STATUS
approved