A038605 a(n) = floor( prime(n)/n ).
2, 1, 1, 1, 2, 2, 2, 2, 2, 2, 2, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 5, 4, 4, 4, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5
Offset: 1
Keywords
Links
- Robert Israel, Table of n, a(n) for n = 1..10000
Crossrefs
Cf. A000040.
Programs
-
Maple
seq(floor(ithprime(n)/n), n=1..200); # Robert Israel, Mar 16 2017
Formula
The prime number theorem is equivalent to the statement a(n) ~ log n. - Ahmed Fares (ahmedfares(AT)my-deja.com), Apr 25 2001
Extensions
Corrected by David Wasserman, Feb 23 2006