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) |
|---|---|
| 0 | 1 |
| 1 | 18 |
| 2 | 539 |
| 3 | 17753 |
| 4 | 603126 |
| 5 | 20721019 |
| 6 | 714790675 |
| 7 | 24693540102 |
| 8 | 853526336417 |
| 9 | 29507528240963 |
| 10 | 1020183543633762 |
| 11 | 35272351950083641 |
| 12 | 1219535200106522761 |
| 13 | 42165342386915661378 |
| 14 | 1457865351514568764211 |
| 15 | 50405667966576581717969 |
| 16 | 1742775306265709714234214 |
| 17 | 60256436430143085819341347 |