Logo

Greetings from The On-Line Encyclopedia of Integer Sequences!

Hints

Search: id:A111688
Displaying 1-1 of 1 results found. page 1
     Format: long | short | internal | text      Sort: relevance | references | number      Highlight: on | off
A111688 Primes and composite numbers alternately in increasing order. +0
1
2, 4, 5, 6, 7, 8, 11, 12, 13, 14, 17, 18, 19, 20, 23, 24, 29, 30, 31, 32, 37, 38, 41, 42, 43, 44, 47, 48, 53, 54, 59, 60, 61, 62, 67, 68, 71, 72, 73, 74, 79, 80, 83, 84, 89, 90, 97, 98, 101, 102, 103, 104, 107, 108, 109, 110 (list; graph; listen)
OFFSET

1,1

COMMENT

3 is the only prime missing. p and p+1 where p is a prime.

CROSSREFS

Sequence in context: A070110 A049095 A101742 this_sequence A104248 A058049 A091871

Adjacent sequences: A111685 A111686 A111687 this_sequence A111689 A111690 A111691

KEYWORD

easy,nonn

AUTHOR

Amarnath Murthy (amarnath_murthy(AT)yahoo.com), Aug 17 2005

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 July 26 23:19 EDT 2008. Contains 142293 sequences.


AT&T Labs Research