[0,1,1,2,2,2,4,3,3,4,6,5,4,5,6,9,7,6,6,7,9,12,10, 8,8,8,10,12,16,13,11,10,10,11,13,16,20,17,14,13, 12,13,14,17,20,25,21,18,16,15,15,16,18,21,25,30, 26,22,20,18,18,18,20,22,26,30,36,31,27,24,22,21, 21,22,24,27,31,36]