-2211domain: ZAppears in sequencesa(n) = 9^n-8^n-7^n-6^n-5^n-4^n-3^n-2^n-1.at n=4A147996First differences of number of active (ON, black) cells in n-th stage of growth of two-dimensional cellular automaton defined by "Rule 353", based on the 5-celled von Neumann neighborhood.at n=27A271308