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 | 2 |
| 2 | 25 |
| 3 | 975 |
| 4 | 1105 |
| 5 | 1625 |
| 6 | 16575 |
| 7 | 739375 |
| 8 | 27625 |
| 9 | 71825 |
| 10 | 27625 |
| 11 | 58093750 |
| 12 | 480675 |
| 13 | 93925 |
| 14 | 8547175 |
| 15 | 1077375 |
| 16 | 801125 |
| 17 | 76765625 |
| 18 | 2082925 |
| 19 | 783935546875 |
| 20 | 801125 |
| 21 | 942703125 |
| 22 | 23740234375 |
| 23 | 1404178750 |
| 24 | 17784975 |
| 25 | 12138425 |
| 26 | 8300781250 |
| 27 | 106229175 |
| 28 | 700984375 |
| 29 | 221252441406250 |