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 | 16 |
| 2 | 256 |
| 3 | 1080 |
| 4 | 4266 |
| 5 | 10489 |
| 6 | 26906 |
| 7 | 54887 |
| 8 | 114392 |
| 9 | 209470 |
| 10 | 385962 |
| 11 | 656670 |
| 12 | 1114828 |
| 13 | 1796644 |
| 14 | 2877378 |
| 15 | 4446790 |
| 16 | 6818296 |
| 17 | 10190753 |
| 18 | 15108240 |
| 19 | 21972963 |
| 20 | 31714408 |
| 21 | 45087635 |
| 22 | 63668368 |
| 23 | 88787667 |
| 24 | 123106970 |
| 25 | 168846792 |
| 26 | 230489608 |
| 27 | 311557126 |