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 | 2 |
| 3 | 3 |
| 4 | 5 |
| 5 | 9 |
| 6 | 27 |
| 7 | 81 |
| 8 | 163 |
| 9 | 3451 |
| 10 | 7372 |
| 11 | 82177 |
| 12 | 3716 |
| 13 | 2769544 |
| 14 | 25899347 |
| 15 | 357567610 |
| 16 | 4229297109 |