OFFSET
1,1
EXAMPLE
The runs of squarefree integers are:
(1,2,3),(5,6,7),(10,11),(13,14,15),(17),(19),(21,22,23),...
Since the 7th run has 3 terms, a(7) = 21, the multiple of 3.
CROSSREFS
KEYWORD
nonn
AUTHOR
Leroy Quet, Jul 21 2006
EXTENSIONS
More terms from Don Reble, Aug 01 2006
STATUS
approved