Number of Hamiltonian circuits within parallelograms of size 9 X n on the triangular lattice.

A339961

Number of Hamiltonian circuits within parallelograms of size 9 X n on the triangular lattice.

Terms

    a(0) =1a(1) =5640a(2) =1269684a(3) =295671198a(4) =93391009587

External references