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 | 7 |
| 2 | 67 |
| 3 | 187 |
| 4 | 1519 |
| 5 | 6367 |
| 6 | 59415 |
| 7 | 371227 |
| 8 | 3347259 |
| 9 | 25280899 |
| 10 | 217539879 |
| 11 | 1797387895 |
| 12 | 15157136755 |
| 13 | 126097221397 |
| 14 | 1042012762911 |