81st Day of Year: 22.03.22 – Sigle Digit, Single Letter and Amicable-Type Representations

References:

1. Inder J. Taneja, Single Digit Representations of Natural Numbers From 1 to 5000, Zenodo, , January 14, 2019, https://doi.org/10.5281/zenodo.2538893.
2. Inder J. Taneja, Single Digit Representations of Natural Numbers From 5001 to 10000, Zenodo, January 14, 2019, https://doi.org/10.5281/zenodo.2538897.
3. Inder J. Taneja, Single Digit Representations of Numbers From 10001 to 15000, Zenodo, January, 26, 2019, pp. 1-510, https://doi.org/10.5281/zenodo.2550414.
4. Inder J. Taneja, Single Digit Representations of Numbers From 15001 to 20000, Zenodo, January, 26, 2019, pp. 1-510, https://doi.org/10.5281/zenodo.2550440.
5. Inder J. Taneja, Patterned Single Digits Representations of Natural Numbers,Zenodo, July 04, 2020, pp. 1-590, https://doi.org/10.5281/zenodo.3930382
6. Inder J. Taneja, Single Digit Representations of Natural Numbers From 20001 to 30000, March 21, 2022, pp. 1-1271, https://doi.org/10.5281/zenodo.6373774.
7. 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. Site link: Single Letter Representations Of Natural Numbers, https://inderjtaneja.com/2017/08/19/single-letter-representations-of-natural-numbers.
8. Inder J. Taneja, Single Letter Representations of Natural Numbers from 1 to 11111, Zenodo, February 5, 2019, pp. 1-133, http://doi.org/10.5281/zenodo.2557025.
9. Inder J. Taneja, Single Letter Patterned Representations and Fibonacci Sequence Values, Zenodo, February 6, 2019, pp. 1-40, http://doi.org/10.5281/zenodo.2558522.
10. Inder J. Taneja. (2020). Patterned Single Letter Representations of Natural Numbers, Zenodo, July 02, 2020, pp. 1-110, http://doi.org/10.5281/zenodo.3928507
11. Inder J. Taneja, Amicable Numbers With Patterns in Products and Powers, Zenodo, March 05, 2019, pp. 1-25, https://doi.org/10.5281/zenodo.2583306