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