3219205

Appears in sequences

• Number of ordered rooted trees with n non-root nodes and all outdegrees <= three.at n=15A036765
• Number of Dyck paths of semilength n avoiding the consecutive step pattern given by the binary expansion of n, where 1=U=(1,1) and 0=D=(1,-1).at n=15A243754
• a(n) = A036765(n-1) if n>0, with a(0) = 1.at n=16A246555