185324domain: NAppears in sequencesa(n) = [ 3rd elementary symmetric function of {log(k)} ], k = 2,3,...,n.at n=35A025203Number of active (ON, black) cells at stage 2^n-1 of the two-dimensional cellular automaton defined by "Rule 601", based on the 5-celled von Neumann neighborhood.at n=8A272373