cp's OEIS Frontend

A334501 Eventual period of a single cell in rule 190 cellular automaton in a cyclic universe of width n.

%I A334501 #26 May 10 2020 04:27:09
%S A334501 1,1,1,4,5,6,7,4,9,10,11,4,13,14,15,4,17,18,19,4,21,22,23,4,25,26,27,
%T A334501 4,29,30,31,4,33,34,35,4,37,38,39,4,41,42,43,4,45,46,47,4,49,50,51,4,
%U A334501 53,54,55,4,57,58,59,4,61,62,63,4,65,66,67,4,69,70
%N A334501 Eventual period of a single cell in rule 190 cellular automaton in a cyclic universe of width n.
%C A334501 _Bradley Klee_ computed a(1)-a(10).
%D A334501 Bradley Klee, Posting to Math Fun Mailing List, Apr 26 2020
%F A334501 Conjectures from _Colin Barker_, May 09 2020: (Start)
%F A334501 G.f.: x*(1 + x + x^2 + 4*x^3 + 3*x^4 + 4*x^5 + 5*x^6 - 4*x^7 - x^9 - 2*x^10) / ((1 - x)^2*(1 + x)^2*(1 + x^2)^2).
%F A334501 a(n) = 2*a(n-4) - a(n-8) for n>8.
%F A334501 (End)
%Y A334501 Cf. A085587, A180001, A334496, A334502-A334515.
%K A334501 nonn
%O A334501 1,4
%A A334501 _N. J. A. Sloane_, May 05 2020
%E A334501 More terms from _Bert Dobbelaere_, May 09 2020