OFFSET
0,1
COMMENTS
From definition Steven Finch and Pascal Sebah 2009 p. 1:
rho(n,m) = lim_{s->1} (s-1) Product_{primes p==n (mod m)} (1-1/p^s)^phi(m), where phi(n) = A000010(n) is the Euler totient function.
LINKS
Steven Finch and Pascal Sebah, Residue of a Mod 5 Euler Product, arXiv:0912.3677 [math.NT], 2009 p. 1-2.
FORMULA
EXAMPLE
0.249135702764931424659963795...
CROSSREFS
KEYWORD
nonn,cons
AUTHOR
Artur Jasinski, Jan 25 2021
STATUS
approved