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) |
|---|---|
| 0 | 2 |
| 1 | 541 |
| 2 | 104729 |
| 3 | 15485863 |
| 4 | 2038074743 |
| 5 | 252097800623 |
| 6 | 29996224275833 |
| 7 | 3475385758524527 |
| 8 | 394906913903735329 |
| 9 | 44211790234832169331 |
| 10 | 4892055594575155744537 |
| 11 | 536193870744162118627429 |
| 12 | 58310039994836584070534263 |