304913domain: NAppears in sequencesFor 0 <= R <= 255, let s(R,n) = eventual period of a single cell in a Rule R cellular automaton operating in a cyclic universe of width n; a(n) = max_R s(R,n).at n=27A334499Eventual period of a single cell in rule 45 cellular automaton in a cyclic universe of width n.at n=27A334508