Triangulations of the disk G_{n,1}.

Terms

a(0) =1a(1) =2a(2) =6a(3) =26a(4) =147a(5) =892a(6) =5876a(7) =40490a(8) =290020a(9) =2136488a(10) =16113254a(11) =123878966a(12) =968017330a(13) =7670113856a(14) =61510346760a(15) =498496979754