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 | 3 |
| 5 | 8 |
| 6 | 15 |
| 7 | 27 |
| 8 | 30 |
| 9 | 66 |
| 10 | 90 |
| 11 | 160 |
| 12 | 348 |
| 13 | 391 |
| 14 | 411 |
| 15 | 626 |
| 16 | 727 |
| 17 | 2740 |
| 18 | 3921 |
| 19 | 6048 |
| 20 | 6891 |
| 21 | 8860 |
| 22 | 21978 |
| 23 | 32411 |
| 24 | 41390 |
| 25 | 52553 |
| 26 | 82948 |
| 27 | 95907 |
| 28 | 264840 |
| 29 | 537363 |
| 30 | 543056 |
| 31 | 587616 |
| 32 | 638931 |
| 33 | 673271 |
| 34 | 1561518 |