OFFSET
1,1
LINKS
Harvey P. Dale, Table of n, a(n) for n = 1..2500
FORMULA
EXAMPLE
a(10)=90 as 18 is the 10th composite number and 10*18/gcd(10,18)=10*18/2=90.
MATHEMATICA
Module[{nn=100, cmps}, cmps=Select[Range[nn], CompositeQ]; LCM@@@Thread[ {Range[ Length[ cmps]], cmps}]] (* Harvey P. Dale, Jul 21 2024 *)
CROSSREFS
KEYWORD
nonn
AUTHOR
Amarnath Murthy, May 17 2002
EXTENSIONS
More terms from Reinhard Zumkeller, May 28 2002
More terms from Lior Manor Jun 02 2002
STATUS
approved