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A334503
Eventual period of a single cell in rule 131 cellular automaton in a cyclic universe of width n.
0
1, 1, 3, 8, 3, 3, 14, 16, 3, 20, 3, 3, 3, 3, 3, 32, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3
OFFSET
1,3
COMMENTS
Bradley Klee computed a(1)-a(10).
REFERENCES
Bradley Klee, Posting to Math Fun Mailing List, Apr 26 2020
FORMULA
Conjectures from Colin Barker, May 13 2020: (Start)
G.f.: x*(1 + 2*x^2 + 5*x^3 - 5*x^4 + 11*x^6 + 2*x^7 - 13*x^8 + 17*x^9 - 17*x^10 + 29*x^15 - 29*x^16) / (1 - x).
a(n) = a(n-1) for n>17.
(End)
CROSSREFS
KEYWORD
nonn
AUTHOR
N. J. A. Sloane, May 05 2020
EXTENSIONS
More terms from Jinyuan Wang, May 09 2020
STATUS
approved