[1,2,2,3,1,4,8,9,1,6,18,19,1,8,32,33,1,10,50,51,1, 12,72,73,1,14,98,99,1,16,128,129,1,18,162,163,1, 20,200,201,1,22,242,243,1,24,288,289,1,26,338,339, 1,28,392,393,1,30,450,451,1,32,512,513,1,34,578, 579,1,36,648,649,1,38,722,723,1,40,800,801]