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A252512
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Number of (n+2)X(6+2) 0..3 arrays with every 3X3 subblock row and column sum equal to 0 2 5 6 or 7 and every 3X3 diagonal and antidiagonal sum not equal to 0 2 5 6 or 7
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1
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9526, 76113, 252551, 584827, 1629431, 5381168, 17585706, 57799811, 185530073, 599739636, 2051749067, 6783005877, 22492217702, 80205331055, 272388576539, 929003666072, 3454446367983, 12033892581409, 42112653517892
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OFFSET
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1,1
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COMMENTS
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LINKS
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EXAMPLE
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Some solutions for n=2
..2..3..2..2..1..3..1..3....3..2..0..0..2..0..0..2....2..2..2..3..1..3..2..2
..3..1..3..1..3..1..3..1....1..0..1..1..0..1..1..0....2..1..3..1..3..1..3..1
..1..3..1..3..1..3..1..3....1..0..1..1..0..1..1..3....1..3..1..3..1..3..1..3
..3..1..2..2..2..1..3..2....3..2..0..3..2..0..3..2....3..1..3..2..2..2..3..1
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CROSSREFS
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KEYWORD
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nonn
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AUTHOR
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STATUS
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approved
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