# A043267 (b-file synthesized from sequence entry) 1 0 2 1 3 2 4 3 5 4 6 5 7 6 8 7 9 2 10 4 11 6 12 8 13 10 14 12 15 14 16 2 17 3 18 4 19 5 20 6 21 7 22 8 23 9 24 4 25 5 26 6 27 7 28 8 29 9 30 10 31 11 32 6 33 7 34 8 35 9 36 10 37 11 38 12 39 13 40 8 41 9 42 10 43 11 44 12 45 13 46 14 47 15 48 10 49 11 50 12 51 13 52 14 53 15 54 16 55 17 56 12 57 13 58 14 59 15 60 16 61 17 62 18 63 19 64 14 65 15 66 16 67 17 68 18 69 19 70 20 71 21