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 | 3 |
| 2 | 11 |
| 3 | 79 |
| 4 | 223 |
| 5 | 367 |
| 6 | 977 |
| 7 | 514219 |
| 8 | 24157807 |
| 9 | 53316291163 |
| 10 | 420196140727489663 |
| 11 | 573147844013817084091 |
| 12 | 48558529144435440119720805669229197631 |
| 13 | 538522340430300790495419781092981030523 |