# A085186 (b-file synthesized from sequence entry)
0 0
1 1
2 10
3 11
4 13
5 100
6 101
7 110
8 111
9 113
10 130
11 131
12 133
13 203
14 1000
15 1001
16 1010
17 1011
18 1013
19 1100
20 1101
21 1110
22 1111
23 1113
24 1130
25 1131
26 1133
27 1203
28 1300
29 1301
30 1310
31 1311
32 1313
33 1330
34 1331
35 1333
36 2003
37 2030
38 2031
39 2033
40 2103
41 2123
42 10000
43 10001
44 10010