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 | 4 |
| 2 | 5 |
| 3 | 6 |
| 4 | 7 |
| 5 | 9 |
| 6 | 11 |
| 7 | 14 |
| 8 | 19 |
| 9 | 25 |
| 10 | 27 |
| 11 | 38 |
| 12 | 208 |
| 13 | 289 |
| 14 | 433 |
| 15 | 529 |
| 16 | 1069 |
| 17 | 1163 |
| 18 | 1801 |
| 19 | 5185 |
| 20 | 5630 |
| 21 | 8148 |
| 22 | 9731 |
| 23 | 11124 |
| 24 | 23787 |
| 25 | 46056 |
| 26 | 64182 |
| 27 | 82629 |
| 28 | 92124 |
| 29 | 97221 |