234090621197domain: NAppears in sequencesa(n+2) = 5*a(n+1) - 3*a(n).at n=18A018902a(n+2) = 5*a(n+1) - 3*a(n) (n >= 1); a(0) = 0, a(1) = 1, a(2) = 4.at n=19A095940