Number of set partitions of {1,...,3n} into sets of size at most n.
A229413
Number of set partitions of {1,...,3n} into sets of size at most n.
Terms
- a(0) =1a(1) =1a(2) =76a(3) =12644a(4) =3305017a(5) =1245131903a(6) =654277037674
External references
- oeis: A229413