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| n | a(n) |
|---|---|
| 1 | 1111 |
| 2 | 2222 |
| 3 | 3333 |
| 4 | 4444 |
| 5 | 5555 |
| 6 | 6666 |
| 7 | 7777 |
| 8 | 8888 |
| 9 | 9999 |
| 10 | 10101 |
| 11 | 11111 |
| 12 | 12121 |
| 13 | 12321 |
| 14 | 13131 |
| 15 | 13531 |
| 16 | 14141 |
| 17 | 14741 |
| 18 | 15151 |
| 19 | 15951 |
| 20 | 16161 |
| 21 | 17171 |
| 22 | 18181 |
| 23 | 19191 |
| 24 | 20202 |
| 25 | 21012 |
| 26 | 21212 |
| 27 | 22222 |
| 28 | 23232 |
| 29 | 23432 |
| 30 | 24242 |
| 31 | 24642 |
| 32 | 25252 |
| 33 | 25852 |
| 34 | 26262 |
| 35 | 27272 |
[1111,2222,3333,4444,5555,6666,7777,8888,9999, 10101,11111,12121,12321,13131,13531,14141,14741, 15151,15951,16161,17171,18181,19191,20202,21012, 21212,22222,23232,23432,24242,24642,25252,25852, 26262,27272] |