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Number of unrooted self-avoiding walks of n steps on honeycomb lattice.
9

%I #8 Feb 07 2016 21:40:06

%S 1,1,2,3,6,9,18,31,61,107,207,378,724,1333,2537,4723,8938,16674,31455,

%T 58805,110642,206849,388444,726236,1361766,2544568,4765466,8900805,

%U 16652803,31085427,58108482,108417265,202517545,377659515,704989607,1314105907,2451689503,4568030529

%N Number of unrooted self-avoiding walks of n steps on honeycomb lattice.

%Y Asymptotically approaches (1/12) * A001668.

%K nonn,walk

%O 1,3

%A _Luca Petrone_, Jan 06 2016