Number of labeled rooted trees of subsets of an n-set.
A005172
Number of labeled rooted trees of subsets of an n-set.
Terms
- a(0) =1a(1) =4a(2) =32a(3) =416a(4) =7552a(5) =176128a(6) =5018624a(7) =168968192a(8) =6563282944a(9) =288909131776
External references
- oeis: A005172