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 | 19 |
| 4 | 23 |
| 5 | 87 |
| 6 | 107 |
| 7 | 255 |
| 8 | 1539 |
| 9 | 2387 |
| 10 | 4457 |
| 11 | 5623 |
| 12 | 15761 |
| 13 | 22735 |
| 14 | 27241 |
| 15 | 86447 |