A173595 - OEIS

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A173595 as a simple table

n	a(n)
1	113
2	199
3	337
4	1151
5	1181
6	3343
7	3373
8	7177
9	7577
10	11161
11	77797
12	98999
13	111119
14	111211
15	323333
16	333337
17	333433
18	777787
19	777877
20	991999
21	1111711
22	3333373
23	9929999
24	11111117
25	11111911
26	11113111

[113,199,337,1151,1181,3343,3373,7177,7577,11161, 77797,98999,111119,111211,323333,333337,333433, 777787,777877,991999,1111711,3333373,9929999, 11111117,11111911,11113111]