Number of connected reduced partially ordered sets (posets) with n labeled elements.
A066303
Number of connected reduced partially ordered sets (posets) with n labeled elements.
Terms
- a(0) =1a(1) =0a(2) =6a(3) =50a(4) =1220a(5) =42122a(6) =2278248a(7) =182111666a(8) =21094774212
External references
- oeis: A066303