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 | 9450 |
| 5 | 23400 |
| 6 | 49925 |
| 7 | 95900 |
| 8 | 170300 |
| 9 | 284475 |
| 10 | 452425 |
| 11 | 691075 |
| 12 | 1020550 |
| 13 | 1464450 |
| 14 | 2050125 |
| 15 | 2808950 |
| 16 | 3776600 |
| 17 | 4993325 |
| 18 | 6504225 |
| 19 | 8359525 |
| 20 | 10614850 |
| 21 | 13331500 |
| 22 | 16576725 |
| 23 | 20424000 |
| 24 | 24953300 |
| 25 | 30251375 |
| 26 | 36412025 |
| 27 | 43536375 |
| 28 | 51733150 |