Number of set partitions of [n] where all subsets are partitioned into the same number of nonempty subsets.
A324238
Number of set partitions of [n] where all subsets are partitioned into the same number of nonempty subsets.
Terms
- a(0) =1a(1) =1a(2) =3a(3) =9a(4) =32a(5) =133a(6) =625a(7) =3328a(8) =20172a(9) =137073a(10) =1023610a(11) =8327069a(12) =73711863a(13) =707141074a(14) =7278630390a(15) =79522233635a(16) =916354807657
External references
- oeis: A324238