OFFSET

1,1

COMMENTS

Bennett-Wood and Owczarek (1996) compute up to a(48).

LINKS

D. Bennett-Wood and A. L. Owczarek, Exact enumeration results for self-avoiding walks on the honeycomb lattice attached to a surface, J. Phys. A: Math. Gen., 29 (1996), 4755-4768. [See Table 1, p. 4761.]

EXAMPLE

a(1)=3 because there are 3 directions on the lattice for the first step.

a(2)=4 because two of these 3 first steps are already "repelled" by the boundary and only the third has two choices to proceed.

CROSSREFS

KEYWORD

nonn

AUTHOR

R. J. Mathar, May 14 2006

EXTENSIONS

Terms a(26) to a(35) were copied from Table 1 (p. 4761) in Bennett-Wood and Owczarek (1996) by Petros Hadjicostas, Jan 05 2019

STATUS

approved