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 | 0 |
| 1 | -1 |
| 2 | 2 |
| 3 | 1 |
| 4 | -7 |
| 5 | 3 |
| 6 | 5 |
| 7 | 6 |
| 8 | -8 |
| 9 | -17 |
| 10 | 15 |
| 11 | -10 |
| 12 | 21 |
| 13 | 21 |
| 14 | -19 |
| 15 | -24 |
| 16 | -33 |
| 17 | 36 |
| 18 | -22 |
| 19 | 45 |
| 20 | 63 |
| 21 | 1 |
| 22 | -92 |
| 23 | -82 |
| 24 | 85 |
| 25 | -97 |
| 26 | 105 |
| 27 | 82 |
| 28 | 28 |
| 29 | -58 |
| 30 | -120 |
| 31 | 120 |
| 32 | -210 |
| 33 | 122 |
| 34 | 180 |
| 35 | 3 |
| 36 | -231 |
| 37 | -138 |
| 38 | 225 |
| 39 | -168 |
| 40 | 255 |
| 41 | 210 |
| 42 | 5 |
| 43 | -282 |
| 44 | -294 |
| 45 | 219 |
| 46 | -284 |
| 47 | 276 |
| 48 | 341 |
| 49 | -43 |
| 50 | -310 |
| 51 | -288 |
| 52 | 441 |
| 53 | -346 |
| 54 | 410 |
| 55 | 366 |
| 56 | -29 |
| 57 | -360 |
| 58 | -668 |
| 59 | 435 |
| 60 | -504 |
| 61 | 465 |
| 62 | 600 |
| 63 | 46 |
| 64 | -603 |
| 65 | -504 |