# A073880 (b-file synthesized from sequence entry)
1 1
2 2
3 3
4 5
5 11
6 22
7 33
8 44
9 101
10 111
11 121
12 131
13 202
14 212
15 222
16 1001
17 1111
18 1221
19 1331
20 2002
21 2112
22 2222
23 10001
24 10101
25 10201
26 10301
27 11011
28 11111
29 12021
30 13031
31 22222
32 100001
33 101101
34 102201
35 103301
36 110011
37 111111
38 120021
39 130031
40 20202
41 1000001