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 | 2 |
| 2 | 17 |
| 3 | 8893 |
| 4 | 24133 |
| 5 | 768373 |
| 6 | 1583293 |
| 7 | 2180741 |
| 8 | 3875933 |
| 9 | 6426919 |
| 10 | 173472547 |
| 11 | 289093219 |
| 12 | 741938801 |
| 13 | 2738357903 |
| 14 | 2895147163 |
| 15 | 3058653607 |
| 16 | 17056871941 |
| 17 | 24109439269 |
| 18 | 26602406177 |
| 19 | 29286422621 |
| 20 | 62073696299 |
| 21 | 65420584637 |
| 22 | 68902997299 |