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 | 5 |
| 3 | 8 |
| 4 | 12 |
| 5 | 15 |
| 6 | 18 |
| 7 | 20 |
| 8 | 30 |
| 9 | 80 |
| 10 | 143 |
| 11 | 152 |
| 12 | 164 |
| 13 | 176 |
| 14 | 239 |
| 15 | 291 |
| 16 | 324 |
| 17 | 504 |
| 18 | 594 |
| 19 | 983 |
| 20 | 2894 |
| 21 | 22226 |
| 22 | 35371 |
| 23 | 58437 |
| 24 | 67863 |
| 25 | 180979 |