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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: A242951 A022089 A275288 * A091827 A160729 A272349

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

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Last modified December 2 21:20 EST 2016. Contains 278694 sequences.