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 | 10 |
| 2 | 56 |
| 3 | 230 |
| 4 | 771 |
| 5 | 2232 |
| 6 | 5776 |
| 7 | 13672 |
| 8 | 30086 |
| 9 | 62292 |
| 10 | 122464 |
| 11 | 230252 |
| 12 | 416394 |
| 13 | 727672 |
| 14 | 1233584 |
| 15 | 2035176 |
| 16 | 3276559 |
| 17 | 5159726 |
| 18 | 7963384 |
| 19 | 12066626 |
| 20 | 17978389 |
| 21 | 26373776 |
| 22 | 38138464 |
| 23 | 54422576 |
| 24 | 76705564 |
| 25 | 106873832 |
| 26 | 147313024 |
| 27 | 201017112 |
| 28 | 271716644 |
| 29 | 364028752 |
| 30 | 483631776 |
| 31 | 637467632 |
| 32 | 833975341 |