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 | 49 |
| 3 | 3025 |
| 4 | 6561 |
| 5 | 35721 |
| 6 | 55225 |
| 7 | 162409 |
| 8 | 219961 |
| 9 | 485809 |
| 10 | 613089 |
| 11 | 1147041 |
| 12 | 1385329 |
| 13 | 2325625 |
| 14 | 2725801 |
| 15 | 4239481 |
| 16 | 4862025 |
| 17 | 7144929 |
| 18 | 8059921 |
| 19 | 11336689 |
| 20 | 12623809 |
| 21 | 17147881 |
| 22 | 18896409 |
| 23 | 24950025 |
| 24 | 27258841 |
| 25 | 35153041 |
| 26 | 38130625 |
| 27 | 48205249 |
| 28 | 51969681 |
| 29 | 64593369 |
| 30 | 69272329 |