Number of cycles with at least 3 alternating runs in all permutations of [n] (it is assumed that the smallest element of a cycle is in the first position).

A187252

Number of cycles with at least 3 alternating runs in all permutations of [n] (it is assumed that the smallest element of a cycle is in the first position).

Terms

    a(0) =0a(1) =0a(2) =0a(3) =0a(4) =2a(5) =26a(6) =260a(7) =2508a(8) =25040a(9) =265552a(10) =3018144a(11) =36827872a(12) =481850240a(13) =6743052672a(14) =100629754112

External references