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 | 10 |
| 2 | 426 |
| 3 | 3556 |
| 4 | 15708 |
| 5 | 49302 |
| 6 | 124982 |
| 7 | 273728 |
| 8 | 538968 |
| 9 | 978690 |
| 10 | 1667554 |
| 11 | 2699004 |
| 12 | 4187380 |
| 13 | 6270030 |
| 14 | 9109422 |
| 15 | 12895256 |
| 16 | 17846576 |
| 17 | 24213882 |
| 18 | 32281242 |
| 19 | 42368404 |
| 20 | 54832908 |
| 21 | 70072198 |
| 22 | 88525734 |
| 23 | 110677104 |
| 24 | 137056136 |
| 25 | 168241010 |
| 26 | 204860370 |