Number of permutations of [n] having exactly three nontrivial cycles.

A289951

Number of permutations of [n] having exactly three nontrivial cycles.

Terms

    a(0) =15a(1) =315a(2) =4480a(3) =56672a(4) =703430a(5) =8941790a(6) =118685336a(7) =1658897240a(8) =24494859389a(9) =382301179169

External references