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 | 3 |
| 3 | 5 |
| 4 | 89 |
| 5 | 233 |
| 6 | 10597999265301490732599643671505003412515860435409421932560009680142974347195483140293254396195769876129909 |