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 | 3 |
| 2 | 8 |
| 3 | 174 |
| 4 | 47270 |
| 5 | 3322246062 |
| 6 | 13585339584457844199 |
| 7 | 266643312158266377656241697792775202384 |
| 8 | 221110316712057155914682414678073188192934894445719392090279403577596961625414 |