from useful_euler import factorial side_length = 20 print "Side Length %s has %s paths." % (side_length, factorial(side_length * 2) / (factorial(side_length) ** 2))
#!/usr/bin/env python from useful_euler import factorial # starting_number = 6 starting_number = 100 print sum(int(i) for i in str(factorial(starting_number)))
