Array T(n,k) read by antidiagonals: T(n,k) is the number of [n,k]-triangulations in the plane that have reflection symmetry, n >= 0, k >= 0.

A169809

Array T(n,k) read by antidiagonals: T(n,k) is the number of [n,k]-triangulations in the plane that have reflection symmetry, n >= 0, k >= 0.

Terms

    a(0) =1a(1) =1a(2) =1a(3) =1a(4) =2a(5) =1a(6) =2a(7) =3a(8) =4a(9) =3a(10) =2a(11) =6a(12) =7a(13) =10a(14) =8a(15) =5a(16) =8a(17) =18a(18) =19a(19) =29a(20) =23a(21) =5a(22) =18a(23) =26a(24) =52a(25) =57a(26) =86a(27) =68a(28) =14a(29) =23

External references