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