[VA] SRC #012c - Then and Now: Sum

[PeterP]

Nicely done, Werner!

I got to the point where I had the sum on the left and the ln(2) times the partial sum on the right but I could not figure out the trick of adding the sum starting from 1 - K-1 back on the right side. Neat!

I used the in(ln2(x))+1 formula for the number of digits and a different approximation for Hn and but it has similar limits for accuracy. With a few tweaks your amazing code would fit the 41 as well, which I was shooting for.