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