This document exposes 3 conflicting codes.
Exposed @ big arrow.
Developers => for your interest.

Integrate_4 [Conflict Sum series].sm (47 KiB) downloaded 60 time(s).

Hello Jean,

About the "n - not defined", it is because you have to nest the second sum in the first, otherwise n is (correctly) undefined. Other things to check later... Thank you for the works as well as the references!

While written correctly, you should be able to highlight the outer sum argument like in this picture:

Thanks Davide for doctoring Ramanujan

Here is the working Logarithmic Li(x)

Jean

Maths Special LogarithmicIntegral(x).sm (16 KiB) downloaded 61 time(s).