# A003976 (b-file synthesized from sequence entry) 1 1 2 1 3 2 4 3 5 2 6 4 7 5 8 2 9 6 10 7 11 3 12 8 13 6 14 4 15 9 16 10 17 4 18 6 19 11 20 5 21 12 22 13 23 4 24 14 25 12 26 6 27 15 28 8 29 7 30 16 31 17 32 6 33 10 34 18 35 8 36 19 37 20 38 6 39 12 40 21 41 8 42 22 43 12 44 9 45 23 46 15 47 10 48 14 49 24 50 8 51 25 52 26 53 6 54 27 55 28 56 11 57 29 58 16 59 10 60 18 61 20 62 12 63 18 64 30 65 13 66 31 67 21 68 8 69 32 70 33 71 14 72 20 73 18 74 12 75 34 76 35 77 12 78 20