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 | 119 |
| 2 | 19684 |
| 3 | 4484039 |
| 4 | 1153450872 |
| 5 | 316504102999 |
| 6 | 90467424400444 |
| 7 | 26597422099282535 |
| 8 | 7982551308100811372 |
| 9 | 2433791198649429739799 |
| 10 | 751311343023233540494324 |
| 11 | 234272536960831652366416711 |
| 12 | 73659190162768197230650923432 |
| 13 | 23321632823842593354369199946519 |