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A251975
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Number of (n+2)X(n+2) 0..3 arrays with every 3X3 subblock row and column sum not 0 1 2 7 8 or 9 and every diagonal and antidiagonal sum 0 1 2 7 8 or 9
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0
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2930, 73222, 4379034, 153525420, 10630171636, 2806746475910, 692955339504464, 209434649520543432, 151587445464265847714, 156011993747327666271372, 207178956167624219233265502
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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
..1..0..2..1....1..1..2..0....0..3..0..2....1..2..0..3....1..3..1..1
..0..3..0..2....0..3..0..3....3..0..3..0....3..0..3..0....3..0..3..2
..3..0..3..2....3..0..3..1....1..3..0..3....0..3..0..3....1..3..0..3
..2..2..1..1....0..2..2..2....1..0..2..1....1..1..3..0....1..0..3..0
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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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