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 | 23 |
| 2 | 101 |
| 3 | 829 |
| 4 | 6653 |
| 5 | 13309 |
| 6 | 6815741 |
| 7 | 436207613 |
| 8 | 13958643709 |
| 9 | 27917287421 |
| 10 | 468374361246531581 |
| 11 | 3746994889972252669 |
| 12 | 959230691832896684029 |
| 13 | 16093220510709943573688614909 |