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 | 8 |
| 4 | 12 |
| 5 | 18 |
| 6 | 25 |
| 7 | 36 |
| 8 | 49 |
| 9 | 67 |
| 10 | 90 |
| 11 | 121 |
| 12 | 158 |
| 13 | 209 |
| 14 | 271 |
| 15 | 351 |
| 16 | 450 |
| 17 | 577 |
| 18 | 731 |
| 19 | 928 |
| 20 | 1166 |
| 21 | 1464 |
| 22 | 1827 |
| 23 | 2277 |
| 24 | 2818 |
| 25 | 3487 |
| 26 | 4291 |
| 27 | 5272 |
| 28 | 6450 |
| 29 | 7880 |