Array read by antidiagonals: T(n,k) is the number of 3-connected triangulations of a disk up to orientation-preserving isomorphisms with n interior nodes and k nodes on the boundary, n >= 1, k >= 3.
A341923
Array read by antidiagonals: T(n,k) is the number of 3-connected triangulations of a disk up to orientation-preserving isomorphisms with n interior nodes and k nodes on the boundary, n >= 1, k >= 3.
Terms
- a(0) =1a(1) =1a(2) =1a(3) =1a(4) =2a(5) =5a(6) =1a(7) =2a(8) =10a(9) =24a(10) =1a(11) =3a(12) =16a(13) =60a(14) =133a(15) =1a(16) =3a(17) =28a(18) =122a(19) =386a(20) =846a(21) =1a(22) =4a(23) =39a(24) =242a(25) =925a(26) =2652a(27) =5661a(28) =1a(29) =4
External references
- oeis: A341923