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 | 25 |
| 2 | 2141 |
| 3 | 11044 |
| 4 | 347576 |
| 5 | 16386099 |
| 6 | 325554385 |
| 7 | 10444421518 |
| 8 | 364864463172 |
| 9 | 9780785065374 |
| 10 | 322718526988333 |
| 11 | 10659390930051828 |
| 12 | 315717305995251778 |