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 | 63 |
| 3 | 435 |
| 4 | 100347 |
| 5 | 100353 |
| 6 | 100359 |
| 7 | 637335 |
| 8 | 129992911 |
| 9 | 129993001 |
| 10 | 129993007 |
| 11 | 129993171 |
| 12 | 8179002121 |
| 13 | 8179002123 |
| 14 | 8179002177 |
| 15 | 382465573539 |