# A022820 (b-file synthesized from sequence entry) 2 2 3 2 4 3 5 4 6 5 7 4 8 6 9 7 10 8 11 7 12 8 13 9 14 12 15 10 16 11 17 12 18 13 19 12 20 15 21 16 22 17 23 14 24 16 25 17 26 20 27 19 28 20 29 21 30 22 31 19 32 22 33 23 34 26 35 24 36 25 37 26 38 29 39 26 40 27 41 28 42 29 43 28 44 33 45 34 46 35 47 30 48 32 49 33 50 36 51 35 52 36 53 37 54 40 55 37 56 40 57 41 58 42 59 39 60 40 61 41 62 46 63 42 64 45 65 46 66 47 67 46 68 49 69 50 70 51 71 46