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A025543 Least common multiple of the first n composite numbers. 3
1, 4, 12, 24, 72, 360, 360, 2520, 2520, 5040, 5040, 5040, 5040, 55440, 55440, 277200, 3603600, 10810800, 10810800, 10810800, 21621600, 21621600, 367567200, 367567200, 367567200, 6983776800, 6983776800, 6983776800, 6983776800, 6983776800 (list; graph; refs; listen; history; text; internal format)
OFFSET
0,2
LINKS
MATHEMATICA
Table[Apply[LCM, Take[Select[Range[2, 300], !PrimeQ[#] &], n]], {n, 1, 100}] (* Clark Kimberling, Nov 12 2016 *)
PROG
(Haskell)
a025543 n = a025543_list !! n
a025543_list = scanl lcm 1 a002808_list
-- Reinhard Zumkeller, Nov 10 2013
CROSSREFS
Differs from A003418 and A051451
Cf. A036691.
Sequence in context: A318610 A296358 A282512 * A064354 A199903 A218034
KEYWORD
nonn
AUTHOR
STATUS
approved

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Last modified March 28 08:12 EDT 2024. Contains 371236 sequences. (Running on oeis4.)