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 | 5 |
| 2 | 7 |
| 3 | 11 |
| 4 | 13 |
| 5 | 19 |
| 6 | 79 |
| 7 | 83 |
| 8 | 89 |
| 9 | 149 |
| 10 | 367 |
| 11 | 431 |
| 12 | 853 |
| 13 | 4007 |
| 14 | 8819 |
| 15 | 8969 |
| 16 | 12953 |
| 17 | 18301 |
| 18 | 18869 |