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 | 2 |
| 2 | 2 |
| 3 | 3 |
| 4 | 5 |
| 5 | 5 |
| 6 | 154769 |
| 7 | 2894219 |
| 8 | 2894219 |
| 9 | 407874179 |
| 10 | 214580145779 |
| 11 | 9448481062019 |
| 12 | 247236503934419 |
| 13 | 2545206711847799 |
| 14 | 18178612369988250179 |
| 15 | 53792264108455702829 |