Logo

Greetings from The On-Line Encyclopedia of Integer Sequences!

Hints

Search: id:A063831
Displaying 1-1 of 1 results found. page 1
     Format: long | short | internal | text      Sort: relevance | references | number      Highlight: on | off
A063831 Sum of cubes of divisors is a square. +0
1
1, 2, 345, 690, 47196, 46248900, 53262468, 71315748, 140553735, 188194335 (list; graph; listen)
OFFSET

1,2

PROGRAM

(PARI) for(n=1, 10^5, if(issquare(sigma(n, 3)), print(n)))

CROSSREFS

Cf. A001158.

Adjacent sequences: A063828 A063829 A063830 this_sequence A063832 A063833 A063834

Sequence in context: A057626 A063968 A064501 this_sequence A064023 A024350 A012669

KEYWORD

more,nonn

AUTHOR

Jason Earls (zevi_35711(AT)yahoo.com), Aug 21 2001

EXTENSIONS

More terms from Thomas Baruchel (baruchel(AT)users.sourceforge.net), Oct 20 2003

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 October 6 16:13 EDT 2008. Contains 144667 sequences.


AT&T Labs Research