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 | 490 |
| 2 | 59542 |
| 3 | 3092808 |
| 4 | 89613429 |
| 5 | 1691136270 |
| 6 | 22954776044 |
| 7 | 239831111938 |
| 8 | 2024703039198 |
| 9 | 14318216628378 |
| 10 | 87184226214168 |
| 11 | 467034400160664 |
| 12 | 2239064967256060 |
| 13 | 9741467994941264 |
| 14 | 38902816410160608 |