# A109728 (b-file synthesized from sequence entry) 0 1 1 2 2 2 3 3 4 3 5 4 6 4 7 5 8 5 9 6 10 6 11 7 12 7 13 8 14 8 15 9 16 9 17 10 18 10 19 12 20 12 21 14 22 14 23 16 24 16 25 18 26 18 27 20 28 21 29 21 30 23 31 23 32 25 33 25 34 27 35 27 36 29 37 29 38 31 39 32 40 32 41 34 42 34 43 36 44 36 45 38 46 38 47 40 48 41 49 41 50 43 51 43 52 45 53 45 54 47 55 47 56 49 57 49 58 51 59 52 60 52 61 54 62 54 63 56 64 56 65 58 66 58 67 60 68 61 69 61 70 63 71 63