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Jun 22, 2020 at 19:58 vote accept Mikhail Gaichenkov
S Apr 12, 2018 at 8:31 history bounty ended Mikhail Gaichenkov
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Apr 5, 2018 at 15:20 answer added David E Speyer timeline score: 8
S Apr 5, 2018 at 13:34 history bounty started Mikhail Gaichenkov
S Apr 5, 2018 at 13:34 history notice added Mikhail Gaichenkov Draw attention
Apr 13, 2017 at 12:58 history edited CommunityBot
replaced http://mathoverflow.net/ with https://mathoverflow.net/
S Aug 24, 2013 at 21:18 history bounty ended CommunityBot
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S Aug 16, 2013 at 19:41 history bounty started Mikhail Gaichenkov
S Aug 16, 2013 at 19:41 history notice added Mikhail Gaichenkov Draw attention
Aug 30, 2011 at 8:15 comment added Mikhail Gaichenkov Well, let $I_n(k)$ - the number of permutations of $n$ objects with precisely $k$ inversions. We should study the property of the numbers $M(n)=I_n([n(n-1)/4])$.
Aug 29, 2011 at 22:58 comment added Brendan McKay Do you agree that the description at OEIS, namely "Kendall-Mann numbers: the maximal number of inversions in a permutation on n letters is floor(n(n-1)/4); a(n) = number of permutations with this many inversions" is wrong? It should refer to the maximum number of permutations having the same number of inversions, right?
Aug 29, 2011 at 12:12 history asked Mikhail Gaichenkov CC BY-SA 3.0