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A152511
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1/60 of the number of permutations of 5 indistinguishable copies of 1..n with exactly 4 local maxima.
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1
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0, 1, 4194, 5825786, 5682784528, 4873147413516, 3978083870212150, 3186605615943562016, 2534375865966184697328, 2010275266425805924583168, 1593002777198909770195152928, 1261900375041824878511515546368, 999492236937050258502770760302080, 791616311022376735886612880860890112
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OFFSET
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1,3
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LINKS
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PROG
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(PARI) \\ PeaksBySig defined in A334774.
a(n) = {PeaksBySig(vector(n, i, 5), [3])[1]/60} \\ Andrew Howroyd, May 12 2020
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CROSSREFS
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KEYWORD
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nonn
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AUTHOR
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EXTENSIONS
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STATUS
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approved
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