[2,1,7,1,7,3,21,1,7,3,21,3,21,9,63,1,7,3,21,3,21, 9,63,3,21,9,63,9,63,27,189,1,7,3,21,3,21,9,63,3, 21,9,63,9,63,27,189,3,21,9,63,9,63,27,189,9,63,27, 189,27,189,81,567,1,7,3,21,3,21,9,63,3,21]