%I #15 May 11 2020 19:29:05
%S 1,2,1,2,15,1,49,15,54,205,176,1,403,441,450,2688,2533,216,13471,5240,
%T 798,14344,9108,1,3175,3315,3402,28518,504252,1800,2228621,473792,
%U 941952,2533,4485250,864,7065594,646,357084,132961360,200241868,3192,2825692,355342152
%N Eventual period of a single cell in rule 169 cellular automaton in a cyclic universe of width n.
%C _Bradley Klee_ computed a(1)-a(10).
%D Bradley Klee, Posting to Math Fun Mailing List, Apr 26 2020
%H Bert Dobbelaere, <a href="/A334505/b334505.txt">Table of n, a(n) for n = 1..60</a>
%Y Cf. A180001, A334496, A334499-A334515.
%K nonn
%O 1,2
%A _N. J. A. Sloane_, May 05 2020
%E a(11)-a(15) from _Jinyuan Wang_, May 09 2020
%E a(16)-a(18) from _Vaclav Kotesovec_, May 10 2020
%E More terms from _Bert Dobbelaere_, May 11 2020