Logo

Greetings from The On-Line Encyclopedia of Integer Sequences!

Hints

Search: id:A107294
Displaying 1-1 of 1 results found. page 1
     Format: long | short | internal | text      Sort: relevance | references | number      Highlight: on | off
A107294 GCD of (n + prime(n)) and (n + 1 + prime(n+1)). +0
1
1, 1, 1, 1, 1, 1, 3, 1, 1, 3, 7, 1, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 5, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 3, 1, 1, 1, 1, 1, 3, 1, 1, 3, 1, 1, 1, 1, 1, 7, 1, 1, 1, 5, 5, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 5, 3, 1, 1, 1, 1, 1, 1, 1, 1, 5, 1, 1, 1, 1, 5, 9, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1 (list; graph; listen)
OFFSET

1,7

EXAMPLE

a(139) = 13 because {(139 + prime(139)), (140 + prime(140))} = {936, 949} ={13*72,13*73}.

MATHEMATICA

Table[GCD[n+Prime[n], n+1+Prime[n+1]], {n, 150}]

CROSSREFS

Sequence in context: A089312 A125127 A058735 this_sequence A140211 A097706 A132740

Adjacent sequences: A107291 A107292 A107293 this_sequence A107295 A107296 A107297

KEYWORD

nonn

AUTHOR

Zak Seidov (zakseidov(AT)yahoo.com), May 20 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 December 4 15:51 EST 2008. Contains 151308 sequences.


AT&T Labs Research