# A071154 (b-file synthesized from sequence entry) 1 1 2 11 3 20 4 111 5 120 6 201 7 210 8 300 9 1111 10 1120 11 1201 12 1210 13 1300 14 2011 15 2020 16 2101 17 2110 18 2200 19 3001 20 3010 21 3100 22 4000 23 11111 24 11120 25 11201 26 11210 27 11300 28 12011 29 12020 30 12101 31 12110 32 12200 33 13001 34 13010 35 13100 36 14000 37 20111 38 20120 39 20201