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 | 3 |
| 2 | 7 |
| 3 | 15 |
| 4 | 123 |
| 5 | 181 |
| 6 | 185 |
| 7 | 539 |
| 8 | 597 |
| 9 | 643 |
| 10 | 743 |
| 11 | 1553 |
| 12 | 3135 |
| 13 | 4769 |
| 14 | 5133 |
| 15 | 6177 |
| 16 | 11733 |
| 17 | 16103 |
| 18 | 18997 |
| 19 | 25271 |
| 20 | 49025 |
| 21 | 65043 |
| 22 | 87965 |