Logo

Greetings from The On-Line Encyclopedia of Integer Sequences!

Hints

Search: id:A068419
Displaying 1-1 of 1 results found. page 1
     Format: long | short | internal | text      Sort: relevance | references | number      Highlight: on | off
A068419 Odd prime values of sigma(k)-eulerphi(k) taking k in increasing order. +0
1
5, 11, 7, 23, 11, 47, 79, 73, 67, 23, 191, 283, 383, 739, 47, 1459, 281, 607, 59, 1153, 1069, 3319, 83, 1801, 2671, 743, 107, 6679, 3529, 6619, 6143, 6271, 4153, 167, 6451, 179, 24097, 23539, 10369, 227, 263, 16369, 41203, 20809, 54919, 65071, 60139, 347 (list; graph; listen)
OFFSET

1,1

CROSSREFS

Sequence in context: A019305 A079778 A088213 this_sequence A082952 A113964 A075261

Adjacent sequences: A068416 A068417 A068418 this_sequence A068420 A068421 A068422

KEYWORD

easy,nonn

AUTHOR

Benoit Cloitre (benoit7848c(AT)orange.fr), Mar 02 2002

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 August 29 17:54 EDT 2008. Contains 143238 sequences.


AT&T Labs Research