! Copyright (c) 2008 Aaron Schaefer.
-! See http://factorcode.org/license.txt for BSD license.
+! See https://factorcode.org/license.txt for BSD license.
USING: kernel math.combinatorics math.primes sequences project-euler.common ;
IN: project-euler.041
-! http://projecteuler.net/index.php?section=problems&id=41
+! https://projecteuler.net/index.php?section=problems&id=41
! DESCRIPTION
! -----------