residues mod 9216: 1: 6139
K=1 L=1 count 14468414 least_x 6282235
K=1 L=2 count 7552 least_x 9066504187
K=1 L=3 count 3 least_x 16733020618747
K=1 L=4 count 0 least_x 0
K=1 L=5 count 0 least_x 0
