Flexible Power Representations: Unequal String Lengths
This paper works with representations of natural numbers from 0 to 11111 written in terms of expressions with additions, subtractions and exponents. Digits used are from 1 to 9 in such a way that for each number, there are same digits in bases and exponents with different permutations. Some numbers can be written in more than one way, but we have chosen with less possible expressions. See below some examples. At the end there is link for download the complete work.
Links for download: Crazy Representations