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 | 37 |
| 3 | 265 |
| 4 | 17207 |
| 5 | 9382589 |
| 6 | 970248431 |
| 7 | 2427811793 |
| 8 | 156281194823 |
| 9 | 2955922292131 |
| 10 | 372012276565795 |