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 | 7 |
| 3 | 9 |
| 4 | 49 |
| 5 | 63 |
| 6 | 81 |
| 7 | 343 |
| 8 | 441 |
| 9 | 567 |
| 10 | 729 |
| 11 | 2401 |
| 12 | 3087 |
| 13 | 3969 |
| 14 | 5103 |
| 15 | 6561 |
| 16 | 16807 |
| 17 | 21609 |
| 18 | 27783 |
| 19 | 35721 |
| 20 | 45927 |
| 21 | 59049 |
| 22 | 117649 |
| 23 | 151263 |
| 24 | 194481 |
| 25 | 250047 |
| 26 | 321489 |
| 27 | 413343 |
| 28 | 531441 |
| 29 | 823543 |
| 30 | 1058841 |
| 31 | 1361367 |
| 32 | 1750329 |
| 33 | 2250423 |
| 34 | 2893401 |
| 35 | 3720087 |
| 36 | 4782969 |