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) |
|---|---|
| 0 | 1 |
| 1 | 35721 |
| 2 | 9 |
| 3 | 64 |
| 4 | 150700176 |
| 5 | 1521 |
| 6 | 1718434116 |
| 7 | 3844 |
| 8 | 1849 |
| 9 | 900 |
| 10 | 2209 |
| 11 | 474721 |
| 12 | 529 |
| 13 | 116964 |
| 14 | 400 |
| 15 | 419845682025 |
| 16 | 618399795456 |
| 17 | 3600 |
| 18 | 187489 |
| 19 | 1734149230641 |
| 20 | 10816 |
| 21 | 1681 |
| 22 | 5560164 |
| 23 | 2025 |
| 24 | 961 |
| 25 | 1444 |
| 26 | 961 |
| 27 | 784 |
| 28 | 41209 |
| 29 | 21926752125201 |