Number of cycles in all derangement permutations of {1,2,...,n}.
A162973
Number of cycles in all derangement permutations of {1,2,...,n}.
Terms
- a(0) =0a(1) =1a(2) =2a(3) =12a(4) =64a(5) =425a(6) =3198a(7) =27216a(8) =258144a(9) =2701737a(10) =30933770a(11) =384675148a(12) =5163521856a(13) =74417353985
External references
- oeis: A162973