# A043271 (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 9 11 10 12 11 13 2 14 4 15 6 16 8 17 10 18 12 19 14 20 16 21 18 22 20 23 22 24 2 25 3 26 4 27 5 28 6 29 7 30 8 31 9 32 10 33 11 34 12 35 13 36 4 37 5 38 6 39 7 40 8 41 9 42 10 43 11 44 12 45 13 46 14 47 15 48 6 49 7 50 8 51 9 52 10 53 11 54 12 55 13 56 14 57 15 58 16 59 17 60 8 61 9 62 10 63 11 64 12 65 13 66 14 67 15 68 16 69 17 70 18 71 19 72 10