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A166207
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Number of nXnXn triangular nonnegative integer arrays, symmetric under 120 degree rotation, with all sums of an element and its neighbors <= 12
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1
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1, 13, 5, 19, 479, 2636, 42285, 3484228, 56578703, 4011008946, 1447700846889, 76408068978456
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OFFSET
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0,2
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LINKS
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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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