https://www.wolframalpha.com/input/?i=sum+1%2Fj%2C+j%3D1+to+132159290357566703
How wolfram alpha calculates something like this? Brute force, or has some kind of formula?
An integral representation derived by Euler gives H_n = Integrate[(1-x^n)/(1-x),{x,0,1)]
The limit n -> infinity (H_n - log n) = gamma, the Euler-Mascheroni constant 0.5772...
