Sum over all permutations of [n] of the minimum of the lengths of longest increasing subsequence and longest decreasing subsequence.
A321274
Sum over all permutations of [n] of the minimum of the lengths of longest increasing subsequence and longest decreasing subsequence.
Terms
- a(0) =1a(1) =2a(2) =10a(3) =46a(4) =274a(5) =1894a(6) =14660a(7) =128648a(8) =1259740a(9) =13540882a(10) =158689006a(11) =2018664332a(12) =27699652406a(13) =407457326286
External references
- oeis: A321274