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Palindromes from Digit Sum Series (Posted on 2015-02-03) Difficulty: 3 of 5
Form a series, starting from 1,

Add to the last number the sum of its own digits, and then repeat.

Example: 1, 2, 4, 8, 16, 23, 28, 38 . . .

The 595th term is 10001, both of which are numerical palindromes.

How many such palindromic pairs does the series contain?

No Solution Yet Submitted by Danish Ahmed Khan    
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  Subject Author Date
Solutionopen ended solution/discussionCharlie2015-02-03 14:31:41
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