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