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 | 2 |
| 2 | 3 |
| 3 | 5 |
| 4 | 6 |
| 5 | 11 |
| 6 | 22 |
| 7 | 49 |
| 8 | 58 |
| 9 | 115 |
| 10 | 125 |
| 11 | 133 |
| 12 | 151 |
| 13 | 394 |
| 14 | 645 |
| 15 | 680 |
| 16 | 1052 |
| 17 | 3026 |
| 18 | 4236 |