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 | 12 |
| 3 | 357 |
| 4 | 11152230 |
| 5 | 425677101135 |
| 6 | 176231297385490627 |
| 7 | 792100212551575195824363010 |
| 8 | 37184565560468428349101431231014883 |
| 9 | 179772163726015311853733844583531746326175175 |