Number of ways to partition n labeled elements into pie slices each of at least 2 elements.
A032181
Number of ways to partition n labeled elements into pie slices each of at least 2 elements.
Terms
- a(0) =0a(1) =1a(2) =1a(3) =4a(4) =11a(5) =56a(6) =267a(7) =1730a(8) =11643a(9) =93532a(10) =804563a(11) =7789838a(12) =81109107a(13) =923080328a(14) =11250876171a(15) =147433014058
External references
- oeis: A032181