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Number of permutations of 1..n with the sequence of sums of 2 adjacent elements having exactly 3 maxima
0

%I #3 Mar 31 2012 12:35:45

%S 0,20,700,12390,172620,2112012,23983344,260353632,2749114368,

%T 28553296200,293791160520

%N Number of permutations of 1..n with the sequence of sums of 2 adjacent elements having exactly 3 maxima

%K nonn

%O 5,2

%A _R. H. Hardin_ Jul 25 2010