Number of Hamiltonian circuits within parallelograms of size 4 X n on the triangular lattice.
A339851
Number of Hamiltonian circuits within parallelograms of size 4 X n on the triangular lattice.
Terms
- a(0) =1a(1) =13a(2) =80a(3) =549a(4) =3851a(5) =26499a(6) =183521a(7) =1269684a(8) =8782833a(9) =60764640a(10) =420375910a(11) =2908245096a(12) =20119820809a(13) =139192751951a(14) =962962619849
External references
- oeis: A339851