# A043270 (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 2 13 4 14 6 15 8 16 10 17 12 18 14 19 16 20 18 21 20 22 2 23 3 24 4 25 5 26 6 27 7 28 8 29 9 30 10 31 11 32 12 33 4 34 5 35 6 36 7 37 8 38 9 39 10 40 11 41 12 42 13 43 14 44 6 45 7 46 8 47 9 48 10 49 11 50 12 51 13 52 14 53 15 54 16 55 8 56 9 57 10 58 11 59 12 60 13 61 14 62 15 63 16 64 17 65 18 66 10 67 11 68 12 69 13 70 14 71 15 72 16