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 | 104 |
| 2 | 147 |
| 3 | 596 |
| 4 | 1415 |
| 5 | 4850 |
| 6 | 5337 |
| 7 | 370047 |
| 8 | 1630622 |
| 9 | 35020303 |
| 10 | 120221396 |
| 11 | 3954451796 |
| 12 | 742514284703 |