Schroeder's fourth problem; also series-reduced rooted trees with n labeled leaves; also number of total partitions of n.
A000311
Schroeder's fourth problem; also series-reduced rooted trees with n labeled leaves; also number of total partitions of n.
Terms
- a(0) =0a(1) =1a(2) =1a(3) =4a(4) =26a(5) =236a(6) =2752a(7) =39208a(8) =660032a(9) =12818912a(10) =282137824a(11) =6939897856a(12) =188666182784
External references
- oeis: A000311