References: Inder J. Taneja, Single Digit Representations of Natural Numbers, Feb. 1015, pp.1-55,  http://arxiv.org/abs/1502.03501. Site link: Single Digits Representations of Numbers from 1 to 20000, https://inderjtaneja.com/2019/01/01/single-letter-representations-of-numbers-from-1-to-20000. Inder J. Taneja, Patterned Selfie Fractions, Zenodo, October 27, 2019, pp. 1-267,  https://doi.org/10.5281/zenodo.3520096. Inder J. Taneja, Power-Type Semi-Selfie Numbers and Patterns, Zenodo, July 16, 2019, pp. 1-130,  https://doi.org/10.5281/zenodo.3338366.