# A007877 (b-file synthesized from sequence entry) 0 0 1 1 2 2 3 1 4 0 5 1 6 2 7 1 8 0 9 1 10 2 11 1 12 0 13 1 14 2 15 1 16 0 17 1 18 2 19 1 20 0 21 1 22 2 23 1 24 0 25 1 26 2 27 1 28 0 29 1 30 2 31 1 32 0 33 1 34 2 35 1 36 0 37 1 38 2 39 1 40 0 41 1 42 2 43 1 44 0 45 1 46 2 47 1 48 0 49 1 50 2 51 1 52 0 53 1 54 2 55 1 56 0 57 1 58 2 59 1 60 0 61 1 62 2 63 1 64 0 65 1 66 2 67 1 68 0 69 1 70 2 71 1 72 0 73 1 74 2 75 1 76 0 77 1 78 2 79 1 80 0 81 1 82 2 83 1 84 0