Number of branches in all noncrossing rooted trees on n nodes on a circle.

A045738

Number of branches in all noncrossing rooted trees on n nodes on a circle.

Terms

    a(0) =1a(1) =4a(2) =24a(3) =148a(4) =925a(5) =5838a(6) =37128a(7) =237576a(8) =1527867a(9) =9867000a(10) =63946740a(11) =415683216a(12) =2709186844a(13) =17697136408a(14) =115833872400a(15) =759517409424

External references