[0,1,1,1,2,2,2,3,2,3,4,3,4,5,4,4,6,5,5,7,6,6,8,6, 6,9,8,7,10,8,8,11,8,10,12,9,10,13,10,10,14,11,12, 15,12,12,16,14,12,17,13,13,18,15,16,19,14,15,20, 15,16,21,16,16,22,17,17,23,20]