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

 

Logo

Invitation: celebrating 50 years of OEIS, 250000 sequences, and Sloane's 75th, there will be a conference at DIMACS, Rutgers, Oct 9-10 2014.

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 September 30 10:17 EDT 2014. Contains 247419 sequences.