a(0) = 1, a(n) = Sum_{k=1..n} A001263(n,k)*a(k-1) where A001263(n,k) are Narayana numbers.

A102812

a(0) = 1, a(n) = Sum_{k=1..n} A001263(n,k)*a(k-1) where A001263(n,k) are Narayana numbers.

Terms

    a(0) =1a(1) =1a(2) =2a(3) =6a(4) =25a(5) =136a(6) =927a(7) =7690a(8) =75913a(9) =876026a(10) =11649009a(11) =176389234a(12) =3011057742a(13) =57453864447

External references