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 | 67 |
| 2 | 449 |
| 3 | 1367 |
| 4 | 10303 |
| 5 | 12343 |
| 6 | 1003003 |
| 7 | 1022141 |
| 8 | 1230127 |
| 9 | 1234543 |
| 10 | 4004009 |
| 11 | 121200307 |
| 12 | 10022234347 |
| 13 | 10201204021 |
| 14 | 10203242527 |
| 15 | 12100242001 |
| 16 | 13310399303 |
| 17 | 16151080151 |
| 18 | 52281509069 |
| 19 | 61584539747 |
| 20 | 90608667517 |
| 21 | 104190107303 |
| 22 | 1020102040201 |
| 23 | 1022143262341 |
| 24 | 12384043938083 |