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 | 0 |
| 2 | 25 |
| 3 | 125 |
| 4 | 625 |
| 5 | 0 |
| 6 | 73 |
| 7 | 10897 |
| 8 | 30177 |
| 9 | 4508 |
| 10 | 65625 |
| 11 | 29672 |
| 12 | 36433 |
| 13 | 263034 |
| 14 | 288873 |
| 15 | 575000 |
| 16 | 159681 |
| 17 | 592030 |
| 18 | 1485433 |
| 19 | 1639363 |
| 20 | 1240625 |
| 21 | 250928 |
| 22 | 928073 |
| 23 | 4040001 |
| 24 | 93601 |
| 25 | 0 |
| 26 | 10915033 |
| 27 | 14288075 |
| 28 | 16048657 |
| 29 | 3176520 |
| 30 | 4515625 |