# A168541 (b-file synthesized from sequence entry) 1 2 2 5 3 20 4 50 5 200 6 202 7 220 8 500 9 505 10 550 11 2000 12 2002 13 2020 14 2022 15 2200 16 2202 17 2220 18 5000 19 5005 20 5050 21 5055 22 5500 23 5505 24 5550 25 20000 26 20002 27 20020 28 20022 29 20200 30 20202 31 20220 32 20222 33 22000 34 22002 35 22020 36 22022 37 22200 38 22202 39 22220 40 50000 41 50005