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 | 2 |
| 2 | 5 |
| 3 | 211 |
| 4 | 457 |
| 5 | 1223 |
| 6 | 3943 |
| 7 | 130259 |
| 8 | 167953 |
| 9 | 468473 |
| 10 | 721159 |
| 11 | 927317 |
| 12 | 2026061 |
| 13 | 7066487 |