Gottfried Helms
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 3h revised Longest known sequence of identical consecutive Collatz sequence lengths? added 1285 characters in body 5h revised Longest known sequence of identical consecutive Collatz sequence lengths? added 816 characters in body 16h revised Longest known sequence of identical consecutive Collatz sequence lengths? additional data for table Apr21 revised I can Euler-sum $\sqrt{-\ln(1)}-\sqrt{-\ln(2)}+\sqrt{-\ln(3)}-\cdots$. But how can I do $\sqrt{-\ln(1)}+\sqrt{-\ln(2)}+\sqrt{-\ln(3))}+\cdots$? just corrected some typos... Apr4 revised Trying mathematical induction with $3n+1$ conjecture added tag Mar29 revised Graph of the function $x^y = y^x$, and $e$ (Euler's number). just corrected some typos... Mar20 revised $3 \times 3$ Magic Square of Squares deleted 811 characters in body Mar20 revised $3 \times 3$ Magic Square of Squares added 374 characters in body Mar20 revised $3 \times 3$ Magic Square of Squares added 374 characters in body Mar20 revised $3 \times 3$ Magic Square of Squares Pari/GP code corrected Mar20 revised $3 \times 3$ Magic Square of Squares added 268 characters in body Mar20 revised $3 \times 3$ Magic Square of Squares added 268 characters in body Mar20 revised $3 \times 3$ Magic Square of Squares added 1680 characters in body Mar20 revised $3 \times 3$ Magic Square of Squares added 467 characters in body Mar15 revised Finding eigenvalues using triangulars added 432 characters in body Mar15 revised Finding eigenvalues using triangulars added 7579 characters in body Mar6 revised Is Collatz' conjecture the only stable solution of its type? added 153 characters in body Feb28 revised The series $\sum_{n=1}^\infty\frac1n$ diverges Please don't shout !! in the title!! (Removed exclamation marks!!) Feb26 revised Proving $\frac{n^n}{e^{n-1}} 2$. added 114 characters in body Feb26 revised Proving $\frac{n^n}{e^{n-1}} 2$. added 114 characters in body