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A251881
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Number of (n+2)X(4+2) 0..4 arrays with every 3X3 subblock row and column sum prime and every diagonal and antidiagonal sum nonprime
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1
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49529, 100787, 237142, 1036785, 4243461, 14269266, 64083601, 266275459, 902777675, 4085369642, 17034771641, 57889402251, 262673853730, 1096504899687, 3730444680839, 16939960843116, 70745310139665, 240883260471212
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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
..4..4..3..4..0..3....3..1..3..3..1..1....0..4..3..4..0..3....0..2..3..0..4..3
..0..4..1..0..4..1....0..3..0..4..3..4....4..0..3..0..4..3....2..0..1..4..0..3
..1..3..1..1..3..1....4..3..4..0..3..0....1..3..1..3..3..1....3..3..1..3..3..1
..2..0..3..4..4..3....1..1..3..1..1..3....2..0..3..0..4..3....0..4..3..0..4..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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