[1,2,3,4,5,6,7,8,9,10,11,12,14,15,18,20,21,22,24,
 28,30,33,35,36,40,42,44,45,55,56,60,63,66,70,72,
 77,84,88,90,99,105,110,120,126,132,140,154,165,
 168,180,198,210,220,231,252,264,280,308,315,330,
 360,385,396,420]