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

 

Logo

"Email this user" was broken Aug 14 to 9am Aug 16. If you sent someone a message in this period, please send it again.

Hints
(Greetings from The On-Line Encyclopedia of Integer Sequences!)
A164962 a(n) is the least prime from the union {2,3} and A164333, beginning with which the n-th prime p_n is obtained by some number of iterations of the S operator g(see A164960). 1
2, 3, 2, 3, 2, 13, 3, 19, 2, 13, 31, 3, 19, 43, 2, 53, 13, 61, 31, 71, 73, 3, 19, 43, 2, 101, 103, 53, 109, 113, 13, 131, 31 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,1

COMMENTS

The sequence is connected with our sieve selecting the primes of the union {2,3} and A164333 from all primes. Note that a(n)=n iff p_n is in the considered union, which corresponds to 0's iterations of g.

LINKS

Table of n, a(n) for n=1..33.

V. Shevelev, On critical small intervals containing primes

CROSSREFS

Cf. A164333 A055496 A164960 A104272 A080359 A164918 A006992 A164917 A164368 A164288

Sequence in context: A287748 A260233 A108656 * A251089 A119880 A075019

Adjacent sequences:  A164959 A164960 A164961 * A164963 A164964 A164965

KEYWORD

nonn,uned

AUTHOR

Vladimir Shevelev, Sep 02 2009

STATUS

approved

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

License Agreements, Terms of Use, Privacy Policy .

Last modified August 17 03:38 EDT 2017. Contains 290631 sequences.