Number of ordered set partitions with a designated element in each block and no block containing less than two elements.
A052848
Number of ordered set partitions with a designated element in each block and no block containing less than two elements.
Terms
- a(0) =1a(1) =0a(2) =2a(3) =3a(4) =28a(5) =125a(6) =1146a(7) =8827a(8) =94200a(9) =1007001a(10) =12814390a(11) =172114151a(12) =2584755636a(13) =41436880069a(14) =721702509906
External references
- oeis: A052848