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 | 1 |
| 2 | 121 |
| 3 | 196 |
| 4 | 529 |
| 5 | 625 |
| 6 | 961 |
| 7 | 6889 |
| 8 | 10201 |
| 9 | 69169 |
| 10 | 1002001 |
| 11 | 1022121 |
| 12 | 1212201 |
| 13 | 5221225 |
| 14 | 100020001 |
| 15 | 100220121 |
| 16 | 109181601 |
| 17 | 121022001 |
| 18 | 522808225 |
| 19 | 602555209 |
| 20 | 10000200001 |
| 21 | 10002200121 |
| 22 | 10020210201 |
| 23 | 10201202001 |
| 24 | 12100220001 |
| 25 | 62188888129 |
| 26 | 1000002000001 |