Number of Hamiltonian rooted triangulations with n internal nodes and 4 external nodes.

A003123

Number of Hamiltonian rooted triangulations with n internal nodes and 4 external nodes.

Terms

    a(0) =2a(1) =12a(2) =92a(3) =800a(4) =7554a(5) =75664a(6) =792448a(7) =8595120a(8) =95895816a(9) =1095130728a(10) =12753454896a(11) =151017596448

External references