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