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A039648 Number of n-step self-avoiding paths on the first octant of a 3-dimensional cubic lattice, starting at the origin. 13
1, 3, 9, 33, 123, 489, 1947, 7977, 32817, 137253, 576993, 2452071, 10468245, 45032733, 194475321, 844608567, 3680153043, 16105438515, 70677344403, 311242931097, 1373860647453, 6081635195553 (list; graph; refs; listen; history; text; internal format)
OFFSET
0,2
LINKS
CROSSREFS
Sequence in context: A148997 A082841 A151038 * A307454 A219261 A182530
KEYWORD
nonn,walk,more
AUTHOR
EXTENSIONS
a(19)-a(21) from Scott R. Shannon, Aug 14 2020
Title clarified by Sean A. Irvine, Feb 20 2021
STATUS
approved

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Last modified March 29 03:51 EDT 2024. Contains 371264 sequences. (Running on oeis4.)