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 | 1 |
| 2 | 3 |
| 3 | 1 |
| 4 | 7 |
| 5 | 8 |
| 6 | 19 |
| 7 | 13 |
| 8 | 4 |
| 9 | 16 |
| 10 | 3 |
| 11 | 42 |
| 12 | 24 |
| 13 | 434 |
| 14 | 84 |
| 15 | 160 |
| 16 | 579 |
| 17 | 475 |
| 18 | 529 |
| 19 | 2450 |
| 20 | 2644 |
| 21 | 3928 |
| 22 | 558 |
| 23 | 13680 |
| 24 | 7146 |
| 25 | 1408 |
| 26 | 3003 |
| 27 | 2369 |
| 28 | 55000 |
| 29 | 83873 |