[1,1,3,1,1,3,7,1,9,1,11,3,13,7,3,1,17,9,19,1,21, 11,23,3,1,13,27,7,29,3,31,1,33,17,7,9,37,19,39,1, 41,21,43,11,9,23,47,3,49,1,51,13,53,27,11,7,57,29, 59,3,61,31,63,1,13,33,67,17,69,7,71,9,73,37,3,19, 77,39,79,1,81]