Number of connected labeled series-parallel posets on n nodes.
A058349
Number of connected labeled series-parallel posets on n nodes.
Terms
- a(0) =1a(1) =2a(2) =12a(3) =122a(4) =1740a(5) =31922a(6) =715932a(7) =18978122a(8) =580513260a(9) =20125554242a(10) =779832497532
External references
- oeis: A058349