Aryabhata
Reputation
60,384
412/400 score
 Apr 13 revised $1989 \mid n^{n^{n^{n}}} - n^{n^{n}}$ for integer $n \ge 3$ edited tags Feb 17 revised Prove that angle ACB > angle ABD. edited tags Jan 21 revised Diophantine equation with $gcd = 1$ edited tags Nov 25 revised Existence of a self-complementary graph added 268 characters in body Oct 2 revised The Modified Faro shuffle. added 52 characters in body Oct 1 revised Subset of the complex plane with $|z^2-4z+3|\leq 0$ edited tags Sep 29 revised In probability, does P(A) = P(AB) + P(AB')? edited tags Sep 11 revised Estimating $\sum n^{-1/2}$ edited tags Sep 11 revised Moebius function log sum edited tags Jul 21 revised For any integer $n>1$ exist integers $a$ and $b$ so that $\tau(a)+\tau(b)=n$ edited tags Jul 8 revised What is $x$ if $\{x\}+\{\frac{1}{x} \}=1$ ? ({} - fractional part)? edited tags Jul 8 revised What is $x$ if $\{x\}+\{\frac{1}{x} \}=1$ ? ({} - fractional part)? edited tags; edited tags Jul 4 revised If, $x+y=1, x^2+y^2=2$ Find $x^7+y^7=??$ edited tags May 7 revised First number $\ge n$ that is divisible by $k$? edited tags Apr 17 revised Compute $\int_{0}^{\infty}\frac{x \log(x)}{(1+x^2)^2}dx$ edited tags Apr 17 revised Proving that $\lim_{n\rightarrow\infty}n(a_{n+1}-a_{n})=1 \implies a_n$ diverges to $\infty$ edited title Apr 17 revised Infinite series $\sum_{n=1}^{\infty}nx^{n+1}$ does not comply to any of my (known) tests edited title Apr 17 revised Showing that $\sum\limits_{n=1}^{\infty} (a_1+2a_2+…+na_n)/n(n+1) = \sum\limits_{i=1}^n a_n$ edited title Apr 17 revised How can I find if $\sum_{n=1}^\infty {n! \over 10^n}$ converges or diverges? edited title Apr 17 revised Proof that $\lim \frac{a_n}{1+a_n^2} = 0 \implies \lim a_n = 0$ deleted 2 characters in body; edited title