[1,1,1,2,3,4,4,5,6,7,8,8,9,10,10,11,12,13,13,14, 15,16,16,17,18,19,20,20,21,22,23,24,24,25,26,26, 27,28,29,29,30,31,32,33,34,34,35,36,36,36,37,38, 39,40,41,41,42,43,44,45,46,47,47,48]