[0,2,1,3,5,3,5,7,2,4,4,6,8,6,8,10,4,6,8,6,8,8,10, 12,3,5,7,5,7,5,7,9,7,9,11,9,11,13,7,9,9,11,13,11, 13,15,5,7,7,9,11,9,11,13,7,9,11,9,11,9,11,13,11, 13,15,13,15,4,6,8,6,8,10,8,10,12,6,8]