[1,2,3,2,3,3,3,5,5,5,5,5,5,7,7,7,7,7,7,7,7,7,7,7, 7,7,11,11,7,11,11,13,13,11,11,11,11,13,13,11,13, 13,13,13,13,13,13,13,13,13,13,13,13,13,13,13,17, 17,17,17,17,19,19,17,17,17,17,19,19,17,17,19,19, 19,19,19,19,17,19]