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 | 2 |
| 4 | 5 |
| 5 | 26 |
| 6 | 287 |
| 7 | 356 |
| 8 | 395 |
| 9 | 544 |
| 10 | 11008 |
| 11 | 21957 |
| 12 | 32125 |
| 13 | 42450 |
| 14 | 50867 |
| 15 | 55408 |
| 16 | 206970 |
| 17 | 358276 |
| 18 | 384287 |
| 19 | 403461 |
| 20 | 735802 |
| 21 | 783831 |
| 22 | 969795 |
| 23 | 1192950 |
| 24 | 1383108 |