Logo

Greetings from The On-Line Encyclopedia of Integer Sequences!

Hints

Search: id:A115414
Displaying 1-1 of 1 results found. page 1
     Format: long | short | internal | text      Sort: relevance | references | number      Highlight: on | off
A115414 Odd abundant numbers not divisible by 3. +0
1
5391411025, 26957055125, 28816162375, 33426748355, 34393484125, 37739877175, 40342627325, 48150877775, 50866790975, 53356378075, 55959128225, 59305521275, 60711976325, 61164628525, 63395557225, 64899009175 (list; graph; listen)
OFFSET

1,1

LINKS

MathWorld, Abundant Numbers.

EXAMPLE

E.g. a(1)=5391411025 because is the smallest abundant number (Sigma(n)/n = 2.003) that is not divisible by 2 or 3

CROSSREFS

Cf. A005101, A005231, A064001, A112640, A112644.

Sequence in context: A017409 A017529 A133688 this_sequence A112430 A058416 A114260

Adjacent sequences: A115411 A115412 A115413 this_sequence A115415 A115416 A115417

KEYWORD

nonn

AUTHOR

Sergio Pimentel (ferdiego(AT)cox.net), Mar 08 2006

EXTENSIONS

Added missing term 55959128225 and a(14)-a(16) from Donovan Johnson (donovan.johnson(AT)yahoo.com), Dec 29 2008

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 November 29 12:46 EST 2009. Contains 167659 sequences.


AT&T Labs Research