Logo

Greetings from The On-Line Encyclopedia of Integer Sequences!

Hints

Search: id:A115972
Displaying 1-1 of 1 results found. page 1
     Format: long | short | internal | text      Sort: relevance | references | number      Highlight: on | off
A115972 a(n) = least prime P(n) such that P(n)-2*p(n) is prime and P(n+1)>P(n) with p(n)=n-th prime. +0
1
11, 29, 149, 307, 1151, 2503, 8501, 30631, 81509, 85991, 190471, 404671, 535481, 840439, 1101071, 2127269, 4640717, 6613753, 6958801, 10343903, 24120379, 49269739, 83751287, 101649827, 166726561, 273469943, 310845889 (list; graph; listen)
OFFSET

1,1
EXAMPLE

p(1)=2, 11-2*p(1)=7 prime so a(1)=11

CROSSREFS

Sequence in context: A118638 A088460 A080083 this_sequence A099109 A024831 A122095

Adjacent sequences: A115969 A115970 A115971 this_sequence A115973 A115974 A115975

KEYWORD

nonn

AUTHOR

Pierre CAMI (pierrecami(AT)tele2.fr), Mar 14 2006

page 1

Search completed in 0.002 seconds

Lookup | Welcome | Find friends | Music | Plot 2 | Demos | Index | Browse | More | WebCam
Contribute new seq. or comment | Format | Transforms | Puzzles | Hot | Classics
More pages | Superseeker | Maintained by N. J. A. Sloane (njas@research.att.com)

Last modified November 18 20:14 EST 2008. Contains 147244 sequences.

AT&T Labs Research

Legal Notice
© 2007 AT&T Knowledge Ventures. All Rights Reserved.