Number of permutations of [n] such that the number of cycles of length k is a multiple of k for every k.
A374262
Number of permutations of [n] such that the number of cycles of length k is a multiple of k for every k.
Terms
- a(0) =1a(1) =1a(2) =1a(3) =1a(4) =4a(5) =16a(6) =46a(7) =106a(8) =316a(9) =3564a(10) =27756a(11) =141516a(12) =556656a(13) =6678816a(14) =73015944a(15) =521124696a(16) =6144018336a(17) =75200767776a(18) =677927254176
External references
- oeis: A374262