Number of sequences in {1,...,n}^n with longest increasing subsequence of length four.

A268871

Number of sequences in {1,...,n}^n with longest increasing subsequence of length four.

Terms

    a(0) =1a(1) =96a(2) =4501a(3) =161876a(4) =5179791a(5) =157279903a(6) =4678809652a(7) =138712471261

External references