# A250217 (b-file synthesized from sequence entry) 1 1 2 11 3 18 4 23 5 25 6 37 7 68 8 113 9 115 10 179 11 229 12 421 13 545 14 1129 15 1451 16 1481 17 1847 18 1987 19 3099 20 3329 21 4391