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A159731
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Number of permutations of 4 indistinguishable copies of 1..n arranged in a circle with exactly 5 local maxima.
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1
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0, 0, 2988, 27458352, 61383379820, 81667937763552, 85059308335953056, 77970400876665940256, 66589111000653219026676, 54577055338226000658293040, 43623618238133057304530730072, 34310058645060995324654729060496, 26688777245272247361239042667969036
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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) \\ CircPeaksBySig defined in A334778.
a(n) = {CircPeaksBySig(vector(n, i, 4), [5])[1]} \\ Andrew Howroyd, May 14 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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