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A316198
Number of self-avoiding polygons with perimeter 2*n and sides = 1 that have vertex angles from the set 0, +-Pi/4, +-Pi/2, +-3*Pi/4, not counting rotations and reflections as distinct.
7
0, 2, 6, 59, 695, 12198
OFFSET
1,2
COMMENTS
Holes are excluded, i.e., the boundary path may nowhere touch or intersect itself.
CROSSREFS
KEYWORD
nonn,walk,more
AUTHOR
Hugo Pfoertner, Jul 04 2018
STATUS
approved