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A147950
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Number of permutations of floor(i*9/4), i=0..n-1, with all sums of 2 through 5 adjacent terms respectively unique.
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1, 2, 6, 16, 96, 376, 1924, 10496, 84546, 512596, 3408402, 27126934, 264217136, 2142601474, 18260309986, 185609885490
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