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Search: id:A166220
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| A166220 |
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Number of 12X12X12 triangular nonnegative integer arrays, symmetric under 120 degree rotation, with all sums of an element and its neighbors <= n |
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1
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| 1, 325, 52518, 4173156, 165533393, 4118194905, 73044448611, 958018305487, 9916013916442, 84913600697770
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