cp's OEIS Frontend

This is a front-end for the Online Encyclopedia of Integer Sequences, made by Christian Perfect. The idea is to provide OEIS entries in non-ancient HTML, and then to think about how they're presented visually. The source code is on GitHub.

A038605 a(n) = floor( prime(n)/n ).

Original entry on oeis.org

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

Views

Author

Vasiliy Danilov (danilovv(AT)usa.net) 1998 Jul

Keywords

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