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 | 0 |
| 2 | 1 |
| 3 | 2 |
| 4 | 4 |
| 5 | 5 |
| 6 | 6 |
| 7 | 10 |
| 8 | 20 |
| 9 | 29 |
| 10 | 67 |
| 11 | 72 |
| 12 | 168 |
| 13 | 175 |
| 14 | 344 |
| 15 | 822 |
| 16 | 1020 |
| 17 | 1190 |
| 18 | 2072 |
| 19 | 2754 |
| 20 | 10716 |
| 21 | 14672 |
| 22 | 16753 |
| 23 | 17605 |
| 24 | 81028 |
| 25 | 120850 |
| 26 | 167964 |
| 27 | 200407 |