OFFSET
1,4
COMMENTS
a(n) is asymptotic to (n^3)/27.
LINKS
EXAMPLE
a(9) = 15 because 9 = 5+3+1 and lcm(1,3,5) = 15 is maximal.
MATHEMATICA
Max[LCM @@@ Compositions[ #, 3]] & /@ Range[1, n]
CROSSREFS
KEYWORD
nonn
AUTHOR
Nickolas Reynolds (nickels(AT)gmail.com), Apr 25 2007
STATUS
approved