OFFSET
1,1
COMMENTS
REFERENCES
John H. Conway and R. K. Guy, "The Book of Numbers," Copernicus, an imprint of Springer-Verlag, NY, 1996, page 144-146.
LINKS
Vladimir Pletser, Table of n, a(n) for n = 1..100 [a(40)-a(41) corrected by Sean A. Irvine]
Eric Weisstein's World of Mathematics, Prime Counting Function.
Eric Weisstein's World of Mathematics, Riemann Prime Counting Function.
CROSSREFS
KEYWORD
nonn
AUTHOR
Vladimir Pletser, Aug 10 2013
STATUS
approved