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 | 1 |
| 2 | 1 |
| 3 | 8 |
| 4 | 9 |
| 5 | 1 |
| 6 | 125 |
| 7 | 196 |
| 8 | 1 |
| 9 | 2744 |
| 10 | 6084 |
| 11 | 1 |
| 12 | 74088 |
| 13 | 219024 |
| 14 | 1 |
| 15 | 2299968 |
| 16 | 8450649 |
| 17 | 1 |
| 18 | 78953589 |
| 19 | 338265664 |
| 20 | 1 |
| 21 | 2924207000 |
| 22 | 13840346025 |
| 23 | 1 |
| 24 | 114933031928 |
| 25 | 574510941225 |
| 26 | 1 |
| 27 | 4738245926336 |
| 28 | 24093764931600 |
| 29 | 1 |
| 30 | 203152294091656 |