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