Logo

Greetings from The On-Line Encyclopedia of Integer Sequences!

Hints

Search: id:A132928
Displaying 1-1 of 1 results found. page 1
     Format: long | short | internal | text      Sort: relevance | references | number      Highlight: on | off
A132928 Concatenation of first n perfect numbers. +0
2
6, 628, 628496, 6284968128, 628496812833550336, 6284968128335503368589869056, 6284968128335503368589869056137438691328, 62849681283355033685898690561374386913282305843008139952128 (list; graph; listen)
OFFSET

1,1

LINKS

O. E. Pol, Determinacion geometrica de los numeros primos y perfectos.

CROSSREFS

Perfect numbers: A000396. Cf. A007908, A019518, A078795.

Sequence in context: A121835 A029590 A134367 this_sequence A055317 A046985 A125535

Adjacent sequences: A132925 A132926 A132927 this_sequence A132929 A132930 A132931

KEYWORD

easy,nonn,base

AUTHOR

Omar E. Pol (info(AT)polprimos.com), Sep 05 2007

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 23 17:35 EDT 2008. Contains 142285 sequences.


AT&T Labs Research