# A366648 (b-file synthesized from sequence entry) 1 3 2 6 3 10 4 14 5 16 6 20 7 32 8 46 9 52 10 64 11 74 12 128 13 178 14 298 15 346 16 502 17 614 18 634 19 1912 20 60394 21 92116