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 | 9 |
| 4 | 11 |
| 5 | 15 |
| 6 | 19 |
| 7 | 29 |
| 8 | 37 |
| 9 | 91 |
| 10 | 123 |
| 11 | 151 |
| 12 | 197 |
| 13 | 415 |
| 14 | 763 |
| 15 | 1817 |
| 16 | 2981 |
| 17 | 3977 |
| 18 | 4199 |
| 19 | 11667 |
| 20 | 12865 |
| 21 | 16873 |
| 22 | 19449 |
| 23 | 27213 |
| 24 | 31581 |
| 25 | 64877 |
| 26 | 65401 |