Number of cycles in range [A014137(n-1)..A014138(n-1)] of permutation A089864.

Terms

a(0) =1a(1) =1a(2) =2a(3) =3a(4) =8a(5) =22a(6) =68a(7) =217a(8) =720a(9) =2438a(10) =8412a(11) =29414a(12) =104048a(13) =371516a(14) =1337352a(15) =4847637a(16) =17679264a(17) =64823110a(18) =238820780a(19) =883634026a(20) =3282065072a(21) =12233141908a(22) =45741298616a(23) =171529836218a(24) =644952132448