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 | 4 |
| 2 | 14 |
| 3 | 36 |
| 4 | 89 |
| 5 | 196 |
| 6 | 416 |
| 7 | 828 |
| 8 | 1600 |
| 9 | 2972 |
| 10 | 5390 |
| 11 | 9504 |
| 12 | 16436 |
| 13 | 27828 |
| 14 | 46364 |
| 15 | 75960 |
| 16 | 122772 |
| 17 | 195728 |
| 18 | 308430 |
| 19 | 480456 |
| 20 | 740921 |
| 21 | 1131364 |
| 22 | 1712348 |
| 23 | 2569500 |
| 24 | 3825641 |
| 25 | 5652872 |
| 26 | 8294612 |
| 27 | 12089016 |
| 28 | 17508609 |
| 29 | 25204428 |
| 30 | 36076540 |
| 31 | 51355368 |
| 32 | 72725909 |