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 | 1 |
| 4 | 0 |
| 5 | 1 |
| 6 | 1 |
| 7 | 1 |
| 8 | 0 |
| 9 | 2 |
| 10 | 3 |
| 11 | 3 |
| 12 | 0 |
| 13 | 5 |
| 14 | 4 |
| 15 | 11 |
| 16 | 0 |
| 17 | 17 |
| 18 | 25 |
| 19 | 27 |
| 20 | 0 |
| 21 | 57 |
| 22 | 60 |
| 23 | 87 |
| 24 | 0 |
| 25 | 200 |
| 26 | 215 |
| 27 | 428 |
| 28 | 0 |
| 29 | 562 |
| 30 | 997 |
| 31 | 961 |
| 32 | 0 |
| 33 | 2660 |
| 34 | 2917 |