# A167679 (b-file synthesized from sequence entry) 0 1 1 2 2 1 3 2 4 1 5 2 6 1 7 2 8 1 9 2 10 21 11 22 12 21 13 22 14 21 15 22 16 21 17 22 18 21 19 22 20 11 21 12 22 11 23 12 24 11 25 12 26 11 27 12 28 11 29 12 30 21 31 22 32 21 33 22 34 21 35 22 36 21 37 22 38 21 39 22 40 11 41 12 42 11 43 12 44 11 45 12 46 11 47 12 48 11 49 12 50 21 51 22 52 21 53 22 54 21 55 22 56 21 57 22 58 21 59 22 60 11 61 12 62 11 63 12 64 11 65 12 66 11 67 12 68 11 69 12 70 21 71 22 72 21