Maximum value taken on by f(P)=sum(i=1..n, p(i)*p(n+1-i) ) as {p(1),p(2),...,p(n)} ranges over all permutations P of {1,2,3,...n}.
1, 4, 13, 28, 53, 88, 137, 200, 281, 380, 501, 644, 813, 1008, 1233, 1488, 1777, 2100
3 seqfan posts
Wed Jun 27 11:46:36 CEST 2012 [seqfan] Re: A087035 (convolution of permutations) and A213387 (count of triples)
Tue Jun 26 18:14:55 CEST 2012 [seqfan] Re: A087035 (convolution of permutations) and A213387 (count of triples)
Tue Jun 26 15:32:56 CEST 2012 [seqfan] A087035 (convolution of permutations) and A213387 (count of triples)
Index of A-numbers in seqfan: by ascending order
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