OFFSET
1,1
COMMENTS
Empirical: a(n) ~ 2*Pi*n^2.
LINKS
Simon Plouffe, Table of n, a(n) for n = 1..100000
David Platt, Zeros of the Zeta function.
David Platt, Computing pi(x) analytically, Mathematics of computation, 84 (2015), 1521-1535.
S. Plouffe, Pi, the primes and the Lambert W function [Slides of a talk]
EXAMPLE
z(1) = 14.134... and prime(1) = 2, a(1) = round(14.134...*2) = 28.
CROSSREFS
KEYWORD
nonn
AUTHOR
Simon Plouffe, Apr 11 2021
STATUS
approved