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Not -1/12

Yes -1/12, Ramanujan Summation:    • the most famous Ramanujan sum 1+2+3+....   Sum of all n^2,    • how Ramanujan did 1^2+2^2+3^2+...=0   How about let's get it to be -1/9:    • I Got Put in the Math Jail (2019)   Be sure to subscribe for more math content! Check out my T-shirts & Hoodies: https://teespring.com/stores/blackpen... support bprp on Patreon (there's a discount code to bprp Teespring store for everyone)   / blackpenredpen   Check out my site & social media 😃 https://blackpenredpen.com 😃   / blackpenredpen   😃   / blackpenredpen   Thank you for your support! blackpenredpen | 曹老師