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A147945
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Number of permutations of floor(i*6/5), i=0..n-1, with all sums of 2 through 5 adjacent terms respectively unique.
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1, 2, 6, 16, 54, 260, 1236, 6360, 31636, 159064, 1028418, 6241800, 40763772, 268393912, 1814067010, 14763664426
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