A339962 Number of Hamiltonian circuits within parallelograms of size 10 X n on the triangular lattice.
1, 18980, 8782833, 4190083085, 2848083212818, 1738936046774850, 1033232532941136255, 621423541447699842468, 373334515946952014204102, 223802065032649969887333948, 134170413630013820290109500226, 80436114451156297907062202392494, 48216986287603185632341666866663007
Offset: 2
Keywords
Links
- Olga Bodroža-Pantić, Harris Kwong and Milan Pantić, Some new characterizations of Hamiltonian cycles in triangular grid graphs, Discrete Appl. Math. 201 (2016) 1-13. (a(n) is equal to h9(n-1) defined by this paper)
- M. Peto, Studies of protein designability using reduced models, Thesis, 2007.