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 | 3 |
| 1 | 6 |
| 2 | 33 |
| 3 | 1086 |
| 4 | 1179393 |
| 5 | 1390967848446 |
| 6 | 1934791555410494424614913 |
| 7 | 3743418362887760317407541271559358491868341997566 |