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) |
|---|---|
| 0 | 1 |
| 1 | 1 |
| 2 | 1 |
| 3 | 1 |
| 4 | -8 |
| 5 | 1 |
| 6 | 1 |
| 7 | -103 |
| 8 | -103 |
| 9 | 1 |
| 10 | 1 |
| 11 | -644 |
| 12 | -4284 |
| 13 | -644 |
| 14 | 1 |
| 15 | 1 |
| 16 | -3199 |
| 17 | -91004 |
| 18 | -91004 |
| 19 | -3199 |
| 20 | 1 |
| 21 | 1 |
| 22 | -14328 |
| 23 | -1418031 |
| 24 | -5836256 |
| 25 | -1418031 |
| 26 | -14328 |
| 27 | 1 |
| 28 | 1 |
| 29 | -60911 |
| 30 | -18428967 |
| 31 | -243950711 |
| 32 | -243950711 |
| 33 | -18428967 |
| 34 | -60911 |
| 35 | 1 |
| 36 | 1 |
| 37 | -251876 |