Number of cycles in range [A014137(n-1)..A014138(n-1)] of permutation A082335/A082336.

A089421

Number of cycles in range [A014137(n-1)..A014138(n-1)] of permutation A082335/A082336.

Terms

    a(0) =1a(1) =1a(2) =1a(3) =2a(4) =3a(5) =9a(6) =22a(7) =71a(8) =217a(9) =729a(10) =2438a(11) =8440a(12) =29414a(13) =104138a(14) =371516a(15) =1337649a(16) =4847637a(17) =17680265a(18) =64823110a(19) =238824212a(20) =883634026

External references