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 | 1 |
| 1 | 47 |
| 2 | 4271 |
| 3 | 434657 |
| 4 | 46069729 |
| 5 | 4974089647 |
| 6 | 541714928431 |
| 7 | 59235304882177 |
| 8 | 6489376893239297 |
| 9 | 711542422708907311 |
| 10 | 78049793235712789423 |
| 11 | 8562932336475599244257 |
| 12 | 939528644055272842890721 |
| 13 | 103089508033934831216777903 |
| 14 | 11311669427350891385087911471 |