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 | 29 |
| 2 | 7316 |
| 3 | 285400 |
| 4 | 4508716 |
| 5 | 42071257 |
| 6 | 273611708 |
| 7 | 1379620392 |
| 8 | 5723597124 |
| 9 | 20398039209 |
| 10 | 64302648044 |
| 11 | 183316772048 |
| 12 | 480140522044 |
| 13 | 1170651602665 |