This is a front-end for the Online Encyclopedia of Integer Sequences, made by Christian Perfect. The idea is to provide OEIS entries in non-ancient HTML, and then to think about how they're presented visually. The source code is on GitHub.
| n | a(n) |
|---|---|
| 1 | 22 |
| 2 | 33 |
| 3 | 55 |
| 4 | 77 |
| 5 | 111 |
| 6 | 1111 |
| 7 | 1133 |
| 8 | 1177 |
| 9 | 1199 |
| 10 | 3377 |
| 11 | 4411 |
| 12 | 4499 |
| 13 | 5533 |
| 14 | 5599 |
| 15 | 6611 |
| 16 | 6677 |
| 17 | 7711 |
| 18 | 7799 |
| 19 | 8899 |
| 20 | 9977 |
| 21 | 11111 |
| 22 | 11199 |
| 23 | 11333 |
| 24 | 11555 |
| 25 | 22233 |
| 26 | 22255 |
| 27 | 22299 |
| 28 | 22333 |
| 29 | 22999 |
| 30 | 33322 |
| 31 | 44222 |
| 32 | 44333 |
| 33 | 44411 |
| 34 | 44477 |
| 35 | 44999 |
| 36 | 55111 |
| 37 | 55222 |
| 38 | 55577 |