This document covers the introduction of the R-sequence, i.e. the sequence of numbers closely related to the distribution of the prime numbers. The paper contains its connection to ζ and Mobius function.
You can download it from the following link: https://packetstormsecurity.com/files/download/107788/paper_new2.pdf
Source: https://packetstormsecurity.com/files/107788/On-The-R-Sequence-And-Prime-Key-Set-Problem.html