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 | 55 |
| 2 | 29135 |
| 3 | 14113081 |
| 4 | 6758547145 |
| 5 | 3229188933738 |
| 6 | 1542208831960569 |
| 7 | 736464037749057990 |
| 8 | 351682265933341657231 |