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 | 3 |
| 3 | -1 |
| 4 | -3 |
| 5 | 4 |
| 6 | -1 |
| 7 | 10 |
| 8 | -6 |
| 9 | 3 |
| 10 | -1 |
| 11 | -18 |
| 12 | 14 |
| 13 | -4 |
| 14 | 3 |
| 15 | -1 |
| 16 | 42 |
| 17 | -24 |
| 18 | 10 |
| 19 | -5 |
| 20 | 3 |
| 21 | -1 |
| 22 | -87 |
| 23 | 47 |
| 24 | -19 |
| 25 | 12 |
| 26 | -5 |
| 27 | 3 |
| 28 | -1 |
| 29 | 190 |
| 30 | -83 |
| 31 | 42 |
| 32 | -22 |
| 33 | 11 |
| 34 | -5 |
| 35 | 3 |
| 36 | -1 |
| 37 | -405 |
| 38 | 152 |
| 39 | -84 |
| 40 | 45 |
| 41 | -20 |
| 42 | 11 |
| 43 | -5 |
| 44 | 3 |
| 45 | -1 |