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 | 15 |
| 2 | 225 |
| 3 | 1056 |
| 4 | 5081 |
| 5 | 14956 |
| 6 | 44742 |
| 7 | 102954 |
| 8 | 238813 |
| 9 | 472174 |
| 10 | 935890 |
| 11 | 1669256 |
| 12 | 2973801 |
| 13 | 4921484 |
| 14 | 8116406 |
| 15 | 12686802 |
| 16 | 19733869 |
| 17 | 29485150 |
| 18 | 43804354 |
| 19 | 63094592 |
| 20 | 90326137 |
| 21 | 126206748 |
| 22 | 175240166 |
| 23 | 238647082 |
| 24 | 322974141 |
| 25 | 430276638 |
| 26 | 569730226 |