The increasing sequence 2, 3, 5, 6, 7, 10, ... consists of all positive integers which are not perfect powers. What is the sum of the squares of the digits of the 10th number in this sequence?
+2666 The first 10 digits are 2, 3, 5, 6, 7, 11, 12, 13, 14, 15.
The 10th digit is 15. Can you take it from here?
