In the following question, two series are given, Series 1 is a wrong number series and series 2 is blank series. Pattern of the series 2 is same as the series 1, and series 2 will start with the wrong term of the series 1.

Series 1) 20, 30, 42, 56, 72, 110

Series 2) a, b, c, d, e, f

Find value of (b + e)?