Number of labeled rooted trees of nonempty sets with n points. (Each node is a set of 1 or more points.)
A048802
Number of labeled rooted trees of nonempty sets with n points. (Each node is a set of 1 or more points.)
Terms
- a(0) =1a(1) =3a(2) =16a(3) =133a(4) =1521a(5) =22184a(6) =393681a(7) =8233803a(8) =198342718a(9) =5408091155a(10) =164658043397
External references
- oeis: A048802