Logo

Greetings from The On-Line Encyclopedia of Integer Sequences!

Hints

Search: id:A050692
Displaying 1-1 of 1 results found. page 1
     Format: long | short | internal | text      Sort: relevance | references | number      Highlight: on | off
A050692 Largest prime factor of composite a(n) is a substring of a(n). +0
3
15, 25, 32, 36, 45, 50, 70, 75, 110, 125, 128, 130, 135, 147, 150, 170, 175, 190, 225, 230, 243, 250, 256, 290, 310, 324, 370, 375, 378, 384, 405, 410, 430, 432, 450, 470, 500, 512, 530, 540, 567, 590, 610, 625, 670, 672, 675, 700, 710, 730, 735, 750, 756 (list; graph; listen)
OFFSET

1,1

EXAMPLE

E.g. 175 = 1{7}5 = 5.5.{7}.

CROSSREFS

Cf. A050691, A050693.

Sequence in context: A067343 A120746 A102802 this_sequence A050693 A069823 A133321

Adjacent sequences: A050689 A050690 A050691 this_sequence A050693 A050694 A050695

KEYWORD

nonn,base

AUTHOR

Patrick De Geest (pdg(AT)worldofnumbers.com), Aug 15 1999.

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 19 23:53 EDT 2008. Contains 142930 sequences.


AT&T Labs Research