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 | 15625 |
| 1 | 1771561 |
| 2 | 24137569 |
| 3 | 148035889 |
| 4 | 594823321 |
| 5 | 1838265625 |
| 6 | 4750104241 |
| 7 | 10779215329 |
| 8 | 22164361129 |
| 9 | 42180533641 |
| 10 | 75418890625 |
| 11 | 128100283921 |
| 12 | 208422380089 |
| 13 | 326940373369 |
| 14 | 496981290961 |
| 15 | 735091890625 |
| 16 | 1061520150601 |
| 17 | 1500730351849 |
| 18 | 2081951752609 |
| 19 | 2839760855281 |
| 20 | 3814697265625 |