Number of cycles in all non-derangement permutations of {1,2,...,n}.
A162972
Number of cycles in all non-derangement permutations of {1,2,...,n}.
Terms
- a(0) =1a(1) =2a(2) =9a(3) =38a(4) =210a(5) =1339a(6) =9870a(7) =82368a(8) =768432a(9) =7926903a(10) =89610070a(11) =1101767732a(12) =14639237184a(13) =209048293375
External references
- oeis: A162972