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 | 2 |
| 2 | 27 |
| 3 | 521 |
| 4 | 11764 |
| 5 | 290305 |
| 6 | 7585749 |
| 7 | 206294771 |
| 8 | 5778015219 |
| 9 | 165541098701 |
| 10 | 4828687088591 |
| 11 | 142916854642246 |
| 12 | 4281359716909135 |
| 13 | 129567073833995237 |
| 14 | 3955263087052174005 |
| 15 | 121649279851846182073 |
| 16 | 3766009580469162813492 |
| 17 | 117260083892211493754415 |