Total number of triangles in all the dissections of a convex (n+3)-gon by nonintersecting diagonals.
A089382
Total number of triangles in all the dissections of a convex (n+3)-gon by nonintersecting diagonals.
Terms
- a(0) =1a(1) =4a(2) =20a(3) =104a(4) =553a(5) =2984a(6) =16272a(7) =89440a(8) =494681a(9) =2749772a(10) =15348372a(11) =85967112a(12) =482927985a(13) =2719787856a(14) =15351385152a(15) =86816721792a(16) =491819758417
External references
- oeis: A089382