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