Array read by antidiagonals: T(n,k) is the number of rooted strong triangulations of a disk with n interior nodes and 3+k nodes on the boundary.

A341856

Array read by antidiagonals: T(n,k) is the number of rooted strong triangulations of a disk with n interior nodes and 3+k nodes on the boundary.

Terms

    a(0) =1a(1) =0a(2) =1a(3) =0a(4) =1a(5) =3a(6) =0a(7) =1a(8) =6a(9) =13a(10) =0a(11) =1a(12) =10a(13) =36a(14) =68a(15) =0a(16) =1a(17) =15a(18) =80a(19) =228a(20) =399a(21) =0a(22) =1a(23) =21a(24) =155a(25) =610a(26) =1518a(27) =2530a(28) =0a(29) =1

External references