! Copyright (c) 2007 Samuel Tardieu, Aaron Schaefer.
! See http://factorcode.org/license.txt for BSD license.
-USING: kernel math math.ranges project-euler.common sequences ;
+USING: kernel math ranges project-euler.common sequences ;
IN: project-euler.018
! http://projecteuler.net/index.php?section=problems&id=18