# A064474 (b-file synthesized from sequence entry) 1 0 2 1 3 2 4 3 5 3 6 3 7 4 8 5 9 6 10 6 11 6 12 7 13 8 14 8 15 8 16 9 17 10 18 11 19 12 20 12 21 12 22 12 23 13 24 13 25 13 26 14 27 15 28 15 29 15 30 16 31 17 32 18 33 18 34 18 35 19 36 20 37 20 38 20 39 20 40 21 41 22 42 23 43 23 44 23 45 24 46 25 47 26 48 27 49 28 50 28 51 28 52 29 53 29 54 29 55 30 56 31 57 31 58 31 59 32 60 33 61 33 62 33 63 34 64 35 65 36 66 37 67 37 68 37 69 37