Number of diagonal dissections of a convex n-gon into n-4 regions.

A002055

Number of diagonal dissections of a convex n-gon into n-4 regions.

Terms

    a(0) =1a(1) =9a(2) =56a(3) =300a(4) =1485a(5) =7007a(6) =32032a(7) =143208a(8) =629850a(9) =2735810a(10) =11767536a(11) =50220040a(12) =212952285a(13) =898198875a(14) =3771484800a(15) =15775723920a(16) =65770848990a(17) =273420862110

External references