# A163697 (b-file synthesized from sequence entry) 1 4 2 21 3 80 4 259 5 775 6 2223 7 6336 8 17796 9 48912 10 131828 11 350506 12 923197 13 2413779 14 6272766 15 16221462 16 41787691 17 107324054 18 274986699 19 703245913 20 1795790220 21 4580304063 22 11671650321 23 29720454413