[1,0,2,0,3,4,0,5,6,8,0,7,9,12,16,0,11,10,18,24,32, 0,13,14,20,36,48,64,0,17,15,27,40,72,96,128,0,19, 21,28,54,80,144,192,256,0,23,22,30,56,108,160,288, 384,512,0,29,25,42,60,112,216,320,576,768,1024]