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A246223
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Number of permutations of [n] with exactly three (possibly overlapping) occurrences of the consecutive step pattern given by the binary expansion of n, where 1=up and 0=down.
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2
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12, 0, 0, 158720, 74601, 0, 59062275, 17730048, 2099186631, 10006375, 206421198786, 135518026916798, 569885619485772, 13007265031125000, 5556193492800826418, 52483739349674666340, 51836903694327604380, 388109358965377200000, 302747316148839193725590
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OFFSET
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7,1
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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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