# A098645 (b-file synthesized from sequence entry) 1 1 2 3 3 10 4 20 5 22 6 31 7 32 8 33 9 34 10 35 11 41 12 51 13 52 14 53 15 54 16 55 17 111 18 112 19 200 20 210 21 220 22 222 23 231 24 1111 25 2000 26 2002 27 2003 28 2004 29 2005 30 2006 31 2007 32 2008 33 2009 34 2020 35 2022 36 2023 37 2024 38 2031 39 10000 40 20000 41 20002 42 20003 43 20004 44 20005 45 20006 46 20007 47 20008 48 20009