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) |
|---|---|
| 2 | 1 |
| 3 | 29 |
| 4 | 3343 |
| 5 | 407889491 |
| 6 | 298572057493 |
| 7 | 454195874136455153 |
| 8 | 855210316410864290683 |
| 9 | 6009294624226370518329498431 |
| 10 | 453664960868214198206218533253007296517 |