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 | 1 |
| 3 | 1 |
| 4 | 1 |
| 5 | 2 |
| 6 | 3 |
| 7 | 6 |
| 8 | 2 |
| 9 | 10 |
| 10 | 11 |
| 11 | 20 |
| 12 | 15 |
| 13 | 90 |
| 14 | 51 |
| 15 | 80 |
| 16 | 6 |
| 17 | 468 |
| 18 | 93 |
| 19 | 2910 |
| 20 | 80 |
| 21 | 521 |
| 22 | 277 |
| 23 | 20644 |
| 24 | 80 |
| 25 | 334 |
| 26 | 1761 |
| 27 | 393 |
| 28 | 521 |
| 29 | 165874 |
| 30 | 1374 |