[0,1,1,2,2,3,4,4,5,5,6,7,7,8,8,9,9,10,11,11,12,12, 13,14,14,15,15,16,16,17,18,18,19,19,20,21,21,22, 22,23,24,24,25,25,26,26,27,28,28,29,29,30,31,31, 32,32,33,33,34,35,35,36,36,37,38,38,39,39,40,41, 41,42,42,43,43]