# A004209 (b-file synthesized from sequence entry) 2 10 3 10 4 11 5 10 6 11 7 100 8 10 9 11 10 12 11 101 12 10 13 11 14 12 15 20 16 110 17 10 18 11 19 12 20 13 21 21 22 111 23 10 24 11 25 12 26 13 27 20 28 22 29 1000 30 10 31 11 32 12 33 13 34 14 35 21 36 100 37 1001 38 10 39 11 40 12 41 13 42 14 43 20 44 22 45 101 46 1010 47 10 48 11 49 12 50 13 51 14 52 15 53 21 54 23 55 102 56 1011 57 10 58 11 59 12 60 13 61 14 62 15 63 20 64 22 65 30