2nd term = (1st term) x 3 - 4 = 10 x 3 - 4 = 26. 3rd term = (2nd term) x 3 - 4 = 26 x 3 - 4 = 74. 4th term = (3th term) x 3 - 4 = 74 x 3 - 4 = 218. 5th term = (4th term) x 3 - 4 = 218 x 3 - 4 = 650. 5th term must be 650 instead of 654.