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 | 1 |
| 2 | -2 |
| 3 | 9 |
| 4 | -14 |
| 5 | 22 |
| 6 | -27 |
| 7 | 58 |
| 8 | -85 |
| 9 | 91 |
| 10 | -97 |
| 11 | 190 |
| 12 | -243 |
| 13 | 213 |
| 14 | -266 |
| 15 | 460 |
| 16 | -499 |
| 17 | 471 |
| 18 | -553 |
| 19 | 778 |
| 20 | -970 |
| 21 | 896 |
| 22 | -845 |
| 23 | 1456 |
| 24 | -1697 |
| 25 | 1264 |
| 26 | -1560 |
| 27 | 2270 |
| 28 | -2289 |
| 29 | 2207 |
| 30 | -2307 |
| 31 | 3150 |
| 32 | -3793 |
| 33 | 3049 |
| 34 | -3125 |
| 35 | 4765 |
| 36 | -5079 |
| 37 | 4061 |
| 38 | -4492 |
| 39 | 6634 |
| 40 | -6714 |
| 41 | 5628 |
| 42 | -6370 |
| 43 | 7821 |
| 44 | -9120 |
| 45 | 7986 |
| 46 | -7013 |