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 | 3 |
| 2 | 0 |
| 3 | -4 |
| 4 | 1 |
| 5 | 7 |
| 6 | 14 |
| 7 | 6 |
| 8 | -3 |
| 9 | -13 |
| 10 | -24 |
| 11 | -12 |
| 12 | 1 |
| 13 | 15 |
| 14 | 30 |
| 15 | 46 |
| 16 | 29 |
| 17 | 11 |
| 18 | -8 |
| 19 | -28 |
| 20 | -49 |
| 21 | -71 |
| 22 | -48 |
| 23 | -24 |
| 24 | 1 |
| 25 | 27 |
| 26 | 54 |
| 27 | 82 |
| 28 | 111 |
| 29 | 81 |
| 30 | 50 |
| 31 | 18 |
| 32 | -15 |
| 33 | -49 |
| 34 | -84 |
| 35 | -120 |
| 36 | -157 |
| 37 | -119 |
| 38 | -80 |
| 39 | -40 |
| 40 | 1 |
| 41 | 43 |
| 42 | 86 |
| 43 | 130 |
| 44 | 175 |
| 45 | 221 |
| 46 | 174 |
| 47 | 126 |
| 48 | 77 |
| 49 | 27 |
| 50 | -24 |
| 51 | -76 |
| 52 | -129 |
| 53 | -183 |
| 54 | -238 |
| 55 | -294 |
| 56 | -237 |
| 57 | -179 |