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 | 1 |
| 2 | 7 |
| 3 | 133 |
| 4 | 1517 |
| 5 | 11761 |
| 6 | 676333 |
| 7 | 1484413 |
| 8 | 3627557 |
| 9 | 10289371 |
| 10 | 1449045241 |
| 11 | 2433687407 |
| 12 | 12309023183 |
| 13 | 29013950411 |
| 14 | 11701492535299 |
| 15 | 223598572318157 |
| 16 | 362232879754103 |