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 | 5 |
| 1 | 230 |
| 2 | 60655 |
| 3 | 59885980 |
| 4 | 168838628985 |
| 5 | 1135186431830610 |
| 6 | 16017412514989202435 |
| 7 | 431206091160978438365960 |
| 8 | 20576087755624257977612141965 |
| 9 | 1641229694168973589934782263724990 |