Revision as of 18:12, 19 October 2018 by Aradin(talk | contribs)(Created page with "{{#annot:|513|PXMZ}}<math>\scriptstyle\left(3n+1\right)^2=\left[\left[10\sdot\left[\frac{1}{3}\sdot\left(3n\right)\right]^2\right]-\left[\frac{1}{3}\sdot\left(3n\right)\right]...")