A316196 Number of symmetric self-avoiding polygons on hexagonal lattice with perimeter n, not counting rotations and reflections as distinct.
0, 0, 1, 1, 1, 4, 3, 10, 9, 36, 27, 129, 90, 449, 331
Offset: 1
Links
- Hugo Pfoertner, Illustration of polygons of perimeter <= 11.