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 | 225 |
| 2 | 441 |
| 3 | 1225 |
| 4 | 2025 |
| 5 | 3969 |
| 6 | 5625 |
| 7 | 11025 |
| 8 | 18225 |
| 9 | 21609 |
| 10 | 27225 |
| 11 | 35721 |
| 12 | 38025 |
| 13 | 50625 |
| 14 | 53361 |
| 15 | 65025 |
| 16 | 74529 |
| 17 | 81225 |
| 18 | 99225 |
| 19 | 119025 |
| 20 | 127449 |
| 21 | 140625 |
| 22 | 148225 |
| 23 | 159201 |
| 24 | 164025 |
| 25 | 184041 |
| 26 | 189225 |
| 27 | 194481 |
| 28 | 207025 |
| 29 | 216225 |
| 30 | 233289 |
| 31 | 245025 |
| 32 | 275625 |
| 33 | 308025 |
| 34 | 314721 |
| 35 | 321489 |