# A172164 (b-file synthesized from sequence entry) 2 20 3 19 4 20 5 19 6 20 7 21 8 18 9 21 10 19 11 20 12 20 13 20 14 19 15 20 16 20 17 19 18 20 19 20 20 20 21 19 22 21 23 18 24 21 25 19 26 21 27 18 28 21 29 19 30 21 31 18 32 21 33 19 34 20 35 20 36 20 37 19 38 20 39 20 40 19 41 20 42 20 43 20 44 19 45 20 46 20 47 20 48 19 49 21 50 18 51 21 52 19 53 20 54 20 55 20 56 19 57 20 58 20 59 20 60 19 61 20 62 20 63 19 64 20 65 20 66 20 67 19 68 21 69 18 70 21