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 | 1 |
| 2 | 2 |
| 3 | 2603 |
| 4 | 4485 |
| 5 | 2894125 |
| 6 | 8422110 |
| 7 | 16832512 |
| 8 | 17322137 |
| 9 | 20485427 |
| 10 | 32550001 |
| 11 | 34980568 |
| 12 | 49197457 |
| 13 | 58325415 |