# A087537 (b-file synthesized from sequence entry)
0 79
1 97
2 77997979
3 79779979
4 79797997
5 79997977
6 99977797
7 99979777
8 7777997999
9 7779799799
10 7779799997
11 7779979979
12 7797799979
13 7797979799
14 7799797799
15 7977799799
16 7979799977
17 7979979779
18 7979979797
19 7979979977
20 7979997797