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A180214
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Number of permutations of 0..(n-1) representable as 1,3,3,1-weighted consecutive sums of 4 adjacent elements of a sequence of n+3 nonnegative integers
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0
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1, 2, 2, 2, 2, 2, 4, 26, 38, 92, 186, 356, 938, 2682, 7032, 25282, 82022, 212058, 772436
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OFFSET
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1,2
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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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