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 | 1252 |
| 3 | 40692 |
| 4 | 1308629 |
| 5 | 68815948 |
| 6 | 2943284092 |
| 7 | 126311779972 |
| 8 | 5624085093712 |
| 9 | 246768571746441 |
| 10 | 10829936933432708 |
| 11 | 476292923791748201 |
| 12 | 20916681831526205985 |
| 13 | 918103119293113999349 |
| 14 | 40284306184645115520403 |