339th, 340th, 341th and 342th Days of Year: 05.12.2021, 06.12.2021, 07.12.2021 and 08.12.2021 – Crazy Representations, Pythagorean Triples and Semi-Selfie Expressions

References Inder J. Taneja, Crazy Representations of Natural Numbers – The 10958  Problem, https://inderjtaneja.com/2018/11/16/crazy-representations-of-natural-numbers-the-10958-problem/Inder J. Taneja, Pythagorean Triples, https://inderjtaneja.com/category/pythagorean-triples/Inder J. Taneja, Factorial-Power Selfie Expressions, Zenodo, February 20, 2019, pp. 1-115,  http://doi.org/10.5281/zenodo.2573569\Inder J. Taneja, Power-Type Semi-Selfie Numbers and Patterns, Zenodo, July 16, 2019, pp. 1-130,  http://doi.org/10.5281/zenodo.3338366