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A252290
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Number of (n+2)X(5+2) 0..2 arrays with every 3X3 subblock row, column, diagonal and antidiagonal sum not equal to 0 1 or 4
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1
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14042, 20213, 59767, 254401, 1227461, 6319654, 33076723, 173978395, 918980293, 4858189985, 25672484797, 135685650662, 717352972096, 3792709432526, 20050973671682, 106002037732954, 560409705365204, 2962812462944117
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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=3
..2..2..2..2..2..1..2....2..1..2..2..1..2..2....1..1..1..1..1..1..1
..2..2..2..2..2..2..2....1..2..2..1..2..2..2....1..1..0..1..1..1..1
..2..2..2..2..2..2..2....2..2..1..2..2..1..2....1..1..1..1..1..1..1
..2..2..2..1..2..2..1....2..1..2..2..2..2..2....1..0..1..1..1..0..1
..2..2..2..2..2..2..2....1..2..2..2..2..2..2....1..1..1..0..1..1..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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