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 | 1 |
| 2 | 23 |
| 3 | 33661 |
| 4 | 20125603 |
| 5 | 288294050521 |
| 6 | 335455351400261 |
| 7 | 60921822444067346581 |
| 8 | 42334470849679755333739 |
| 9 | 125339574046311949415000577841 |
| 10 | 3763027389086366356144399489191943 |