# A218043 (b-file synthesized from sequence entry) 1 12 2 21 3 102 4 111 5 120 6 201 7 210 8 1002 9 1011 10 1020 11 1101 12 1110 13 1200 14 2001 15 2010 16 2100 17 10002 18 10011 19 10020 20 10101 21 10110 22 10200 23 11001 24 11010 25 11100 26 12000 27 20001 28 20010 29 20100 30 21000 31 100002 32 100011 33 100020 34 100101 35 100110 36 100200 37 101001 38 101010 39 101100