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 | 7 |
| 3 | 7 |
| 4 | 7 |
| 5 | 91 |
| 6 | 3103 |
| 7 | 12451 |
| 8 | 230191 |
| 9 | 286867 |
| 10 | 1657867 |
| 11 | 10029811 |
| 12 | 29761351 |
| 13 | 22410151 |
| 14 | 98402791 |
| 15 | 167137543 |