# A280018 (b-file synthesized from sequence entry) 1 0 2 1 3 3 4 5 5 7 6 11 7 14 8 20 9 25 10 35 11 36 12 117 13 164 14 372 15 453 16 649 17 1743 18 1748 19 1897 20 2323 21 6351 22 16599 23 25017 24 25736 25 27866