References: Inder J. Taneja, Quadratic-Type Selfie Numbers, Zenodo, February 25, 2019, pp. 1-315, http://doi.org/10.5281/zenodo.2577472 Inder J. Taneja, Nested Magic Squares With Perfect Square Sums, Pythagorean Triples, and Borders Differences, Zenodo, June 14, 2019, pp. 1-59, http://doi.org/10.5281/zenodo.3246586 Inder J. Taneja, Symmetric Properties of Nested Magic Squares, Zenodo, June 29, 2019, pp. 1-55, http://doi.org/10.5281/zenodo.3262170 Inder J. Taneja, General Sum Symmetric and … Continue reading 196th Day of Year: 15.07.19