# A147001 (b-file synthesized from sequence entry) 1 1 2 1 3 1 4 1 5 1 6 1 7 4 8 5 9 13 10 19 11 43 12 57 13 239 14 521 15 2347 16 5442 17 24758 18 63173 19 355006 20 1139569 21 7776109 22 29105899 23 223723640 24 955226817 25 8533424348