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