Sums of powers of permutations of length n.

A192553

Sums of powers of permutations of length n.

Terms

    a(0) =1a(1) =2a(2) =5a(3) =15a(4) =51a(5) =197a(6) =850a(7) =3897a(8) =19461a(9) =104264

External references