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 | 4 |
| 2 | 8 |
| 3 | 12 |
| 4 | 20 |
| 5 | 28 |
| 6 | 36 |
| 7 | 120 |
| 8 | 184 |
| 9 | 200 |
| 10 | 756 |
| 11 | 788 |
| 12 | 1304 |
| 13 | 6412 |
| 14 | 7848 |
| 15 | 12944 |
| 16 | 40116 |
| 17 | 45056 |
| 18 | 67520 |
| 19 | 129172 |
| 20 | 204592 |
| 21 | 225568 |
| 22 | 615116 |
| 23 | 803668 |
| 24 | 1646668 |
| 25 | 2917844 |