The number 512 is interesting because it is equal to the sum of its digits raised to some power: 5 + 1 + 2 = 8, and 8^3 = 512. Another example of a number with this property is 614656 = 28^4.
We shall define an to be the nth term of this sequence and insist that a number must contain at least two digits to have a sum.
You are given that a_2 = 512 and a_10 = 614656.
Find a_30.
Genious wanted 
1. az a 81 8+1 =9x9=81
