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 | 17 |
| 3 | 127 |
| 4 | 1871 |
| 5 | 13969 |
| 6 | 205793 |
| 7 | 1536463 |
| 8 | 22635359 |
| 9 | 168996961 |
| 10 | 2489683697 |