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 | 6 |
| 2 | 18 |
| 3 | 50 |
| 4 | 132 |
| 5 | 276 |
| 6 | 530 |
| 7 | 1008 |
| 8 | 1710 |
| 9 | 2760 |
| 10 | 4464 |
| 11 | 6828 |
| 12 | 10268 |
| 13 | 15246 |
| 14 | 21828 |
| 15 | 30820 |
| 16 | 42750 |
| 17 | 57696 |
| 18 | 77032 |
| 19 | 101916 |
| 20 | 132564 |
| 21 | 169736 |
| 22 | 216816 |
| 23 | 269286 |
| 24 | 338490 |
| 25 | 412386 |
| 26 | 507354 |
| 27 | 605278 |
| 28 | 739308 |
| 29 | 865314 |
| 30 | 1042944 |
| 31 | 1207962 |
| 32 | 1437132 |
| 33 | 1643508 |
| 34 | 1943628 |
| 35 | 2191176 |