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 | 1 |
| 3 | 4 |
| 4 | 49 |
| 5 | 529 |
| 6 | 2209 |
| 7 | 6241 |
| 8 | 27889 |
| 9 | 28561 |
| 10 | 35344 |
| 11 | 49729 |
| 12 | 128881 |
| 13 | 192721 |
| 14 | 250000 |
| 15 | 431649 |
| 16 | 528529 |
| 17 | 703921 |
| 18 | 1181569 |
| 19 | 1495729 |
| 20 | 1610361 |
| 21 | 1868689 |
| 22 | 3411409 |
| 23 | 4870849 |
| 24 | 5755201 |
| 25 | 9138529 |
| 26 | 11390625 |
| 27 | 12250000 |
| 28 | 13830961 |
| 29 | 13845841 |
| 30 | 15737089 |
| 31 | 22648081 |
| 32 | 25391521 |
| 33 | 31618129 |