[1,1,2,4,4,6,6,8,9,10,10,12,12,14,15,16,16,18,18, 20,21,22,22,24,25,26,27,28,28,30,30,32,33,34,35, 36,36,38,39,40,40,42,42,44,45,46,46,48,49,50,51, 52,52,54,55,56,57,58,58,60,60,62,63,64,65,66,66, 68,69,70,70,72]