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A166214
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Number of 6 X 6 X 6 triangular nonnegative integer arrays, symmetric under 120 degree rotation, with all sums of an element and its neighbors <= n.
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2
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1, 6, 26, 89, 249, 604, 1340, 2718, 5166, 9309, 16010, 26443, 42285, 65576, 99088, 146337, 211677, 300467, 419570, 576863, 782184, 1047233, 1385738, 1813757, 2350697, 3018141, 3841784, 4851076, 6079477, 7564937, 9351702, 11488015
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