Logo

Greetings from The On-Line Encyclopedia of Integer Sequences!

Hints

Search: id:A030458
Displaying 1-1 of 1 results found. page 1
     Format: long | short | internal | text      Sort: relevance | references | number      Highlight: on | off
A030458 Primes formed by concatenating n with n+1. +0
12
23, 67, 89, 1213, 3637, 4243, 5051, 5657, 6263, 6869, 7879, 8081, 9091, 9293, 9697, 102103, 108109, 120121, 126127, 138139, 150151, 156157, 180181, 186187, 188189, 192193, 200201, 216217, 242243, 246247, 252253, 270271 (list; graph; listen)
OFFSET

1,1
CROSSREFS

A052089, A052087, A052088.

Adjacent sequences: A030455 A030456 A030457 this_sequence A030459 A030460 A030461

Sequence in context: A104945 A125873 A059241 this_sequence A053559 A031376 A069173

KEYWORD

nonn,base

AUTHOR

Patrick De Geest (pdg(AT)worldofnumbers.com)

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 May 16 23:01 EDT 2008. Contains 139884 sequences.

AT&T Labs Research

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