138th, 139th, 140th and 141th Days of Year: 17.05.2020, 18.05.2020, 19.05.2020 and 20.05.2020 – Parts 1 and 2

References:

1. Inder J. Taneja, 2020 In Numbers: Mathematical Style – Revised,    Zenodo, December 31, 2019, pp. 1-37,   http://doi.org/10.5281/zenodo.3596193.
2. Inder J. Taneja, Single Digits Representations of Numbers from 1 to 20000, https://inderjtaneja.com/2019/01/01/single-letter-representations-of-numbers-from-1-to-20000/
3. Inder J. Taneja, Patterns in Selfie and Semi-Selfie Numbers. Zenodo, February 6, 2019,  pp. 1-51,  http://doi.org/10.5281/zenodo.2563202.
4. Inder J. Taneja, Same Digits Equality Expressions: Power and Plus, Zenodo, January 03, 2020, 2019, pp. 1-1729, http://doi.org/10.5281/zenodo.3597506
5. Inder J. Taneja, Patterned Selfie Fractions, Zenodo, October 27, 2019, pp. 1-267, http://doi.org/10.5281/zenodo.3520096
6. Inder J. Taneja, Fixed and Flexible Powers Narcissistic Numbers with Division, Zenodo, May 11, 2020, pp. 1-201, http://doi.org/10.5281/zenodo.3820428
7. Inder J, Taneja, Crazy Representations of Numbers – The 10958 Problem,   https://inderjtaneja.com/2018/11/16/crazy-representations-of-natural-numbers-the-10958-problem/
8.  Inder J. Taneja, Factorial-Type Numerical Calendar, Zenodo, March 24, 2020, pp. 1-33, http://doi.org/10.5281/zenodo.3726335.