60308domain: NAppears in sequencesNumber of length n+5 0..1 arrays with at most one downstep in every 5 consecutive neighbor pairs.at n=14A255989Number of active (ON, black) cells at stage 2^n-1 of the two-dimensional cellular automaton defined by "Rule 398", based on the 5-celled von Neumann neighborhood.at n=8A271694