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 | 9 |
| 2 | 15 |
| 3 | 17 |
| 4 | 65 |
| 5 | 129 |
| 6 | 135 |
| 7 | 209 |
| 8 | 225 |
| 9 | 327 |
| 10 | 357 |
| 11 | 423 |
| 12 | 1061 |
| 13 | 1143 |
| 14 | 3629 |
| 15 | 4937 |
| 16 | 6713 |
| 17 | 33123 |
| 18 | 79185 |
| 19 | 88323 |
| 20 | 89933 |