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 | -3 |
| 1 | 0 |
| 2 | 2 |
| 3 | 3 |
| 4 | -2 |
| 5 | -5 |
| 6 | -1 |
| 7 | 7 |
| 8 | 6 |
| 9 | -6 |
| 10 | -13 |
| 11 | 0 |
| 12 | 19 |
| 13 | 13 |
| 14 | -19 |
| 15 | -32 |
| 16 | 6 |
| 17 | 51 |
| 18 | 26 |
| 19 | -57 |
| 20 | -77 |
| 21 | 31 |
| 22 | 134 |
| 23 | 46 |
| 24 | -165 |
| 25 | -180 |
| 26 | 119 |
| 27 | 345 |
| 28 | 61 |
| 29 | -464 |
| 30 | -406 |
| 31 | 403 |
| 32 | 870 |
| 33 | 3 |
| 34 | -1273 |
| 35 | -873 |
| 36 | 1270 |
| 37 | 2146 |
| 38 | -397 |
| 39 | -3416 |
| 40 | -1749 |
| 41 | 3813 |
| 42 | 5165 |
| 43 | -2064 |
| 44 | -8978 |
| 45 | -3101 |
| 46 | 11042 |
| 47 | 12079 |
| 48 | -7941 |