Triangle read by rows: T(n,k) is the number of dissections of a convex n-gon by nonintersecting diagonals, having a k-gon over a fixed edge (base).
A091370
Triangle read by rows: T(n,k) is the number of dissections of a convex n-gon by nonintersecting diagonals, having a k-gon over a fixed edge (base).
Terms
- a(0) =1a(1) =2a(2) =1a(3) =7a(4) =3a(5) =1a(6) =28a(7) =12a(8) =4a(9) =1a(10) =121a(11) =52a(12) =18a(13) =5a(14) =1a(15) =550a(16) =237a(17) =84a(18) =25a(19) =6a(20) =1a(21) =2591a(22) =1119a(23) =403a(24) =125a(25) =33a(26) =7a(27) =1a(28) =12536a(29) =5424
External references
- oeis: A091370