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 | 5 |
| 3 | 7 |
| 4 | 19 |
| 5 | 29 |
| 6 | 47 |
| 7 | 59 |
| 8 | 163 |
| 9 | 257 |
| 10 | 421 |
| 11 | 937 |
| 12 | 947 |
| 13 | 1493 |
| 14 | 1901 |
| 15 | 6689 |
| 16 | 8087 |
| 17 | 9679 |
| 18 | 28753 |
| 19 | 79043 |
| 20 | 129127 |
| 21 | 145969 |
| 22 | 165799 |
| 23 | 168677 |
| 24 | 170413 |
| 25 | 172243 |