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A266925 Number of unrooted self-avoiding walks of n steps on honeycomb lattice. 9
1, 1, 2, 3, 6, 9, 18, 31, 61, 107, 207, 378, 724, 1333, 2537, 4723, 8938, 16674, 31455, 58805, 110642, 206849, 388444, 726236, 1361766, 2544568, 4765466, 8900805, 16652803, 31085427, 58108482, 108417265, 202517545, 377659515, 704989607, 1314105907, 2451689503, 4568030529 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,3

LINKS

Table of n, a(n) for n=1..38.

CROSSREFS

Asymptotically approaches (1/12) * A001668.

Sequence in context: A095718 A038751 A218543 * A018518 A091326 A113863

Adjacent sequences: A266922 A266923 A266924 * A266926 A266927 A266928

KEYWORD

nonn,walk

AUTHOR

Luca Petrone, Jan 06 2016

STATUS

approved

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Last modified December 8 14:51 EST 2022. Contains 358695 sequences. (Running on oeis4.)