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A039618 Number of 2n-step self-avoiding closed walks on first octant of 3-dimensional cubic lattice, passing through origin. 3
1, 0, 3, 18, 138, 1278, 13410, 154584, 1919352, 25273422, 348989058, 5011939788, 74393974476, 1135821378924 (list; graph; refs; listen; history; text; internal format)
OFFSET
0,3
LINKS
Sean A. Irvine, Java program (github)
CROSSREFS
Sequence in context: A003122 A275549 A357403 * A183363 A216492 A127129
KEYWORD
nonn,walk,hard,more
AUTHOR
EXTENSIONS
a(11)-a(13) from Sean A. Irvine, Feb 19 2021
STATUS
approved

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Last modified March 28 14:38 EDT 2024. Contains 371254 sequences. (Running on oeis4.)