[0,0,1,2,2,4,3,6,4,8,5,10,6,12,7,14,8,16,9,18,10, 20,11,22,12,24,13,26,14,28,15,30,16,32,17,34,18, 36,19,38,20,40,21,42,22,44,23,46,24,48,25,50,26, 52,27,54,28,56,29,58,30,60,31,62,32,64,33,66,34, 68,35,70,36,72]