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 | 6 |
| 4 | 9 |
| 5 | 11 |
| 6 | 53 |
| 7 | 105 |
| 8 | 125 |
| 9 | 137 |
| 10 | 228 |
| 11 | 789 |
| 12 | 1259 |
| 13 | 1661 |
| 14 | 1697 |
| 15 | 1785 |
| 16 | 3737 |
| 17 | 6054 |
| 18 | 7614 |
| 19 | 11819 |
| 20 | 27366 |
| 21 | 28320 |
| 22 | 48678 |
| 23 | 69321 |
| 24 | 76067 |
| 25 | 97085 |