a(n) is the number of Schröder trees on n vertices with a prescribed root.

A052894

a(n) is the number of Schröder trees on n vertices with a prescribed root.

Terms

    a(0) =1a(1) =1a(2) =5a(3) =46a(4) =631a(5) =11586a(6) =267369a(7) =7442758a(8) =242833091a(9) =9090987610a(10) =384209125453

External references