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 | 0 |
| 3 | 1 |
| 4 | 1 |
| 5 | 7 |
| 6 | 1 |
| 7 | 5 |
| 8 | 1 |
| 9 | 13 |
| 10 | 1 |
| 11 | 1 |
| 12 | 1 |
| 13 | 901 |
| 14 | 1 |
| 15 | -11 |
| 16 | 1 |
| 17 | 3647 |
| 18 | 1 |
| 19 | -43825 |
| 20 | 1 |
| 21 | 1222387 |
| 22 | 1 |
| 23 | -854507 |
| 24 | 1 |
| 25 | 1181821001 |
| 26 | 1 |
| 27 | -76977925 |
| 28 | 1 |
| 29 | 23749461059 |
| 30 | 1 |
| 31 | -8615841275543 |
| 32 | 1 |
| 33 | 28267510484519 |
| 34 | 1 |