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 | 24133 |
| 3 | 870530414842019 |
| 4 | 11138479445180240497 |
| 5 | 1948856725874605823462196012533593 |