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 | 2 |
| 2 | 3 |
| 3 | 4 |
| 4 | 5 |
| 5 | 9 |
| 6 | 11 |
| 7 | 12 |
| 8 | 18 |
| 9 | 24 |
| 10 | 29 |
| 11 | 38 |
| 12 | 76 |
| 13 | 146 |
| 14 | 152 |
| 15 | 187 |
| 16 | 200 |
| 17 | 404 |
| 18 | 442 |
| 19 | 504 |
| 20 | 950 |
| 21 | 2796 |
| 22 | 5133 |
| 23 | 5683 |
| 24 | 11334 |
| 25 | 13775 |
| 26 | 20539 |
| 27 | 21253 |