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) |
|---|---|
| 0 | 246 |
| 1 | 2469 |
| 2 | 4691 |
| 3 | 6913 |
| 4 | 9135 |
| 5 | 11357 |
| 6 | 135782 |
| 7 | 1578202 |
| 8 | 17820222 |
| 9 | 182022242 |
| 10 | 202224262 |
| 11 | 222426283 |
| 12 | 242628303 |
| 13 | 262830323 |
| 14 | 283032343 |
| 15 | 303234363 |
| 16 | 323436384 |
| 17 | 343638404 |
| 18 | 363840424 |
| 19 | 384042444 |
| 20 | 404244464 |
| 21 | 424446485 |
| 22 | 444648505 |
| 23 | 464850525 |