login
This site is supported by donations to The OEIS Foundation.
Logo

Hints
(Greetings from The On-Line Encyclopedia of Integer Sequences!)
A111114 Integer part of prime(x)/pi(x). 1
3, 2, 3, 3, 4, 4, 4, 5, 7, 6, 7, 6, 7, 7, 8, 8, 8, 8, 8, 9, 9, 9, 9, 10, 11, 11, 11, 10, 11, 11, 11, 12, 12, 13, 13, 13, 13, 13, 14, 13, 13, 13, 13, 14, 14, 14, 14, 15, 15, 15, 15, 15, 15, 16, 16, 16, 16, 16, 16, 15, 16, 17, 17, 17, 17, 17, 17, 18, 18, 17, 17, 17, 17, 18, 18, 18, 18 (list; graph; refs; listen; history; internal format)
OFFSET

2,1

COMMENTS

Conjecture: As x-> infinity, there is an infinite number of x's such that a(x) is greater than a(x+1).

LINKS

Harry J. Smith, Table of n, a(n) for n=2,...,10000

FORMULA

Prime(x) = x-th prime. Pi(x) = number of prime numbers less than or equal to x.

EXAMPLE

Prime(2) = 3, Pi(2) = 1 so the first term is 3.

Prime(3) = 5, Pi(3) = 2 so the second term is 2.

PROG

(PARI) for(x=2, 100, print1(floor(prime(x)/primepi(x))", "))

(PARI) for(x=2, 10000, write("b111114.txt", x, " ", floor(prime(x)/primepi(x))); ) [From Harry J. Smith (hjsmithh(AT)sbcglobal.net), Mar 08 2009]

CROSSREFS

Sequence in context: A091460 A035093 A061266 * A181672 A125748 A058680

Adjacent sequences:  A111111 A111112 A111113 * A111115 A111116 A111117

KEYWORD

easy,nonn

AUTHOR

Cino Hilliard (hillcino368(AT)gmail.com), Oct 14 2005

Lookup | Welcome | Wiki | Register | Music | Plot 2 | Demos | Index | Browse | More | WebCam
Contribute new seq. or comment | Format | Transforms | Puzzles | Hot | Classics
Recent Additions | More pages | Superseeker | Maintained by The OEIS Foundation Inc.

Content is available under The OEIS End-User License Agreement .

Last modified February 13 10:39 EST 2012. Contains 205459 sequences.