8589934585domain: NAppears in sequencesa(n) = T(7,n), array T given by A048483.at n=30A048490a(n) = 8*4^n - 7.at n=15A141722a(n) = 8^n-7.at n=10A164786Decimal representation of the n-th iteration of the "Rule 211" elementary cellular automaton starting with a single ON (black) cell.at n=16A267780