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 | 1 |
| 2 | 1 |
| 3 | 1 |
| 4 | 4 |
| 5 | 4 |
| 6 | 9 |
| 7 | 16 |
| 8 | 36 |
| 9 | 64 |
| 10 | 121 |
| 11 | 256 |
| 12 | 484 |
| 13 | 961 |
| 14 | 1936 |
| 15 | 3844 |
| 16 | 7569 |
| 17 | 15129 |
| 18 | 30276 |
| 19 | 60516 |
| 20 | 121104 |
| 21 | 242064 |
| 22 | 483025 |
| 23 | 966289 |
| 24 | 1932100 |
| 25 | 3865156 |
| 26 | 7728400 |
| 27 | 15452761 |
| 28 | 30902481 |
| 29 | 61811044 |
| 30 | 123609924 |
| 31 | 247212729 |
| 32 | 494439696 |
| 33 | 988850916 |
| 34 | 1977669841 |