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 | 0 |
| 2 | 1 |
| 3 | 5 |
| 4 | 6 |
| 5 | 15 |
| 6 | 24 |
| 7 | 25 |
| 8 | 66 |
| 9 | 72 |
| 10 | 309 |
| 11 | 330 |
| 12 | 594 |
| 13 | 1000 |
| 14 | 1142 |
| 15 | 1882 |
| 16 | 2482 |
| 17 | 2725 |
| 18 | 30106 |
| 19 | 65176 |
| 20 | 85334 |