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A204626
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Number of (n+1)X5 0..2 arrays with every 2X2 subblock having unequal diagonal elements or unequal antidiagonal elements, and new values 0..2 introduced in row major order
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1
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6144, 933462, 141832254, 21550390395, 3274427479938, 497525810748759, 75595484720747496, 11486192649538372653, 1745244733464500021670, 265177441526573391694167, 40291813604266663731304284
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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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FORMULA
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Empirical: a(n) = 165*a(n-1) -2025*a(n-2) +6241*a(n-3) -270*a(n-4) -17282*a(n-5) +5524*a(n-6) +11864*a(n-7) +1568*a(n-8)
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EXAMPLE
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Some solutions for n=3
..0..0..0..1..2....0..0..0..0..0....0..1..0..2..1....0..0..0..0..1
..0..1..2..0..2....1..0..1..1..2....1..1..2..1..1....0..1..0..2..1
..2..0..2..2..1....2..2..1..2..2....2..1..1..1..0....0..0..2..1..0
..1..2..1..2..1....2..1..0..1..1....1..0..2..1..2....0..2..1..0..2
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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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