OFFSET
1,4
LINKS
Robert Israel, Table of n, a(n) for n = 1..25
MAPLE
a[1]:=1: a[2]:=1: a[3]:=1: for n from 4 to 18 do a[n]:=lcm(a[n-1]+a[n-2], a[n-3]) od: seq(a[n], n=1..18); # Emeric Deutsch, May 22 2007
CROSSREFS
KEYWORD
nonn,changed
AUTHOR
Leroy Quet, May 07 2007
EXTENSIONS
More terms from Emeric Deutsch, May 22 2007
STATUS
approved