[1,2,2,4,4,6,6,8,8,10,9,12,12,12,12,16,16,18,18, 20,21,21,20,24,24,24,24,27,28,28,30,32,32,34,33, 36,36,36,36,40,39,42,40,42,44,44,45,48,48,48,48, 51,52,52,55,54,56,56,55,60,60,60,60,64,64,66,66, 68,69,69,68,72,72]