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 | 25 |
| 2 | 625 |
| 3 | 3025 |
| 4 | 14641 |
| 5 | 43681 |
| 6 | 130321 |
| 7 | 303601 |
| 8 | 707281 |
| 9 | 1413721 |
| 10 | 2825761 |
| 11 | 5085025 |
| 12 | 9150625 |
| 13 | 15249025 |
| 14 | 25411681 |
| 15 | 39929761 |
| 16 | 62742241 |
| 17 | 94109401 |
| 18 | 141158161 |
| 19 | 203889841 |
| 20 | 294499921 |
| 21 | 412293025 |
| 22 | 577200625 |
| 23 | 787083025 |
| 24 | 1073283121 |
| 25 | 1431033241 |