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A306181 Number of unrooted self-avoiding walks with n steps that can make turns from the set +-Pi/11, +-3*Pi/11, +-5*Pi/11, +-7*Pi/11, +-9*Pi/11. 10
1, 5, 28, 235, 1970, 17201 (list; graph; refs; listen; history; text; internal format)
OFFSET
1,2
COMMENTS
The turning angles are those of the regular 11-gon, with one vertex corresponding to the forbidden U-turn. The path may neither intersect nor touch itself anywhere.
LINKS
CROSSREFS
Sequence in context: A183375 A000530 A121674 * A362690 A116977 A362636
KEYWORD
nonn,walk,more
AUTHOR
Hugo Pfoertner, Jun 23 2018
STATUS
approved

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Last modified May 30 06:59 EDT 2024. Contains 372962 sequences. (Running on oeis4.)