login
This site is supported by donations to The OEIS Foundation.

 

Logo

The submissions stack has been unacceptably high for several months now. Please voluntarily restrict your submissions and please help with the editing. (We don't want to have to impose further limits.)

Hints
(Greetings from The On-Line Encyclopedia of Integer Sequences!)
A110357 Least integer of the form n*(n+k)/(n-k). 0
6, 6, 12, 20, 12, 42, 24, 18, 15, 110, 20, 156, 35, 30, 48, 272, 36, 342, 30, 28, 66, 506, 40, 100, 78, 54, 70, 812, 42, 930, 96, 66, 102, 63, 45, 1332, 114, 78, 60, 1640, 56, 1806, 77, 90, 138, 2162, 80, 294, 75, 102, 117, 2756, 108, 66, 72, 114, 174, 3422, 84, 3660 (list; graph; refs; listen; history; text; internal format)
OFFSET

2,1

LINKS

Table of n, a(n) for n=2..61.

MAPLE

a:=proc(n) local p: p:=proc(k) if type(n*(n+k)/(n-k), integer)=true then n*(n+k)/(n-k) else fi end; [seq(p(j), j=1..n-1)][1]: end: seq(a(n), n=2..75); (Deutsch)

CROSSREFS

Sequence in context: A014201 A242951 A022089 * A091827 A160729 A115014

Adjacent sequences:  A110354 A110355 A110356 * A110358 A110359 A110360

KEYWORD

nonn

AUTHOR

Amarnath Murthy, Jul 22 2005

EXTENSIONS

Corrected and extended by Emeric Deutsch, Jul 29 2005

STATUS

approved

Lookup | Welcome | Wiki | Register | Music | Plot 2 | Demos | Index | Browse | More | WebCam
Contribute new seq. or comment | Format | Transforms | Superseeker | Recent | More pages
The OEIS Community | Maintained by The OEIS Foundation Inc.

Content is available under The OEIS End-User License Agreement .

Last modified August 28 15:16 EDT 2015. Contains 261125 sequences.