# A003833 (b-file synthesized from sequence entry) 1 20 2 1 3 18 4 4 5 13 6 6 7 10 8 15 9 2 10 17 11 3 12 19 13 7 14 16 15 8 16 11 17 14 18 9 19 12 20 5 21 20 22 1 23 18 24 4 25 13 26 6 27 10 28 15 29 2 30 17 31 3 32 19 33 7 34 16 35 8 36 11 37 14 38 9 39 12 40 5 41 20 42 1 43 18 44 4 45 13 46 6 47 10 48 15 49 2 50 17 51 3 52 19 53 7 54 16 55 8 56 11 57 14 58 9 59 12 60 5 61 20 62 1 63 18 64 4 65 13 66 6 67 10 68 15 69 2 70 17 71 3 72 19 73 7 74 16 75 8 76 11 77 14 78 9