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A193184
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Number of nXnXn triangular 0..4 arrays with no element equal to the sum mod 5 of any two neighbors
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0
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5, 64, 320, 5000, 191008, 14760960, 2327810048, 744138184192, 482125942079488, 633412084252934144, 1687400357268217397248, 9114708361014996399816704, 99830224938625064018120802304
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OFFSET
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1,1
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LINKS
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EXAMPLE
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Some solutions for 4X4X4
.....2........3........4........2........4........3........2........3
....2.3......3.2......4.4......2.2......1.1......2.3......4.4......2.2
...3.2.3....3.2.3....4.4.4....2.3.3....1.1.4....2.2.2....1.1.1....2.2.2
..4.3.2.3..4.3.3.4..4.4.1.4..2.3.2.2..1.4.4.2..3.2.2.3..3.1.4.1..3.3.2.1
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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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