[2,3,3,5,5,7,7,8,8,9,11,12,12,13,15,15,16,17,18, 18,19,20,20,21,23,24,24,25,27,28,29,30,30,31,32, 32,33,35,36,37,39,39,40,41,42,42,43,44,44,45,47, 48,48,49,50,51,52,53,54,54,55,56,57,59,60,60,61, 63,63,64,65,66,67,68,68,69,70,71,72]