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 | 1365 |
| 3 | 60920 |
| 4 | 2816409 |
| 5 | 132103824 |
| 6 | 6238756831 |
| 7 | 295545642334 |
| 8 | 14020698615685 |
| 9 | 665580139683936 |
| 10 | 31605577678427531 |
| 11 | 1501028805154667736 |
| 12 | 71292415421456529651 |
| 13 | 3386189554819795682250 |
| 14 | 160836875185955529578497 |
| 15 | 7639466332037337857340948 |
| 16 | 362862300943189672121948117 |