[1,3,1,7,3,1,15,7,3,1,31,15,7,3,1,63,31,15,7,3,1, 127,63,31,15,7,3,1,255,127,63,31,15,7,3,1,511,255, 127,63,31,15,7,3,1,1023,511,255,127,63,31,15,7,3, 1,2047,1023,511,255,127,63,31,15,7,3,1]