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 | 3 |
| 2 | 227 |
| 3 | 14563 |
| 4 | 932067 |
| 5 | 59652323 |
| 6 | 3817748707 |
| 7 | 244335917283 |
| 8 | 15637498706147 |
| 9 | 1000799917193443 |
| 10 | 64051194700380387 |
| 11 | 4099276460824344803 |
| 12 | 262353693492758067427 |
| 13 | 16790636383536516315363 |
| 14 | 1074600728546337044183267 |
| 15 | 68774446626965570827729123 |