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 | 0 |
| 2 | 1 |
| 3 | 70 |
| 4 | 425 |
| 5 | 1426 |
| 6 | 3577 |
| 7 | 7526 |
| 8 | 14065 |
| 9 | 24130 |
| 10 | 38801 |
| 11 | 59302 |
| 12 | 87001 |
| 13 | 123410 |
| 14 | 170185 |
| 15 | 229126 |
| 16 | 302177 |
| 17 | 391426 |
| 18 | 499105 |
| 19 | 627590 |
| 20 | 779401 |
| 21 | 957202 |
| 22 | 1163801 |
| 23 | 1402150 |
| 24 | 1675345 |
| 25 | 1986626 |
| 26 | 2339377 |
| 27 | 2737126 |
| 28 | 3183545 |
| 29 | 3682450 |
| 30 | 4237801 |
| 31 | 4853702 |