# A216643 (b-file synthesized from sequence entry) 1 1 2 1 3 1 4 1 5 1 6 1 7 1 8 1 9 1 10 1 11 1 12 2 13 4 14 8 15 21 16 45 17 159 18 483 19 1397 20 4252 21 12860