# A043268 (b-file synthesized from sequence entry) 1 0 2 1 3 2 4 3 5 4 6 5 7 6 8 7 9 8 10 2 11 4 12 6 13 8 14 10 15 12 16 14 17 16 18 2 19 3 20 4 21 5 22 6 23 7 24 8 25 9 26 10 27 4 28 5 29 6 30 7 31 8 32 9 33 10 34 11 35 12 36 6 37 7 38 8 39 9 40 10 41 11 42 12 43 13 44 14 45 8 46 9 47 10 48 11 49 12 50 13 51 14 52 15 53 16 54 10 55 11 56 12 57 13 58 14 59 15 60 16 61 17 62 18 63 12 64 13 65 14 66 15 67 16 68 17 69 18 70 19 71 20 72 14