References
- Inder J. Taneja, Same Digits Equality Expressions, https://inderjtaneja.com/2017/02/23/same-digits-equality-expressions/
- Single Letter Representations of Natural Numbers, https://inderjtaneja.com/2017/08/19/single-letter-representations-of-natural-numbers/
- Inder J. Taneja, Fraction-Type Single Letter Representations of Natural Numbers From 1 to 11111, Zenodo, February 4, 2019, pp. 1-203, http://doi.org/10.5281/zenodo.2556902.
Numbers Magic 