# A170814 (b-file synthesized from sequence entry) 1 1 2 2 3 4 4 12 5 40 6 116 7 200 8 444 9 760 10 2160 11 4368 12 7852 13 12828 14 17252 15 19612 16 21104 17 18276 18 15096 19 11052 20 8484 21 6400 22 5360