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 | 11 |
| 2 | 43 |
| 3 | 258 |
| 4 | 1886 |
| 5 | 15772 |
| 6 | 140549 |
| 7 | 1311749 |
| 8 | 12648913 |
| 9 | 124896943 |
| 10 | 1255339471 |
| 11 | 12791342074 |
| 12 | 131747261218 |
| 13 | 1368576060800 |
| 14 | 14314677403795 |