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 | 5 |
| 3 | 357 |
| 4 | 93768037 |
| 5 | 1689174798555184371255653 |
| 6 | 9874926935306000254499942419184958425482775497556872534778412080951642469 |