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) |
|---|---|
| 0 | 2 |
| 1 | 33 |
| 2 | 9 |
| 3 | 831 |
| 4 | 396 |
| 5 | 45 |
| 6 | 28236 |
| 7 | 18297 |
| 8 | 3744 |
| 9 | 243 |
| 10 | 1210140 |
| 11 | 968679 |
| 12 | 273483 |
| 13 | 32481 |
| 14 | 1377 |
| 15 | 62686440 |
| 16 | 58920534 |
| 17 | 20681811 |
| 18 | 3418767 |
| 19 | 268029 |
| 20 | 8019 |
| 21 | 3810867480 |
| 22 | 4075425738 |
| 23 | 1683064737 |
| 24 | 347584284 |
| 25 | 38186478 |
| 26 | 2130138 |
| 27 | 47385 |