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 | 2 |
| 2 | 1 |
| 3 | -2 |
| 4 | 2 |
| 5 | 3 |
| 6 | 0 |
| 7 | -3 |
| 8 | -1 |
| 9 | 4 |
| 10 | -3 |
| 11 | -3 |
| 12 | 2 |
| 13 | -1 |
| 14 | -12 |
| 15 | 12 |
| 16 | 11 |
| 17 | 6 |
| 18 | -5 |
| 19 | 0 |
| 20 | 5 |
| 21 | -4 |
| 22 | -9 |
| 23 | -11 |
| 24 | 1 |
| 25 | 4 |
| 26 | -20 |
| 27 | -20 |
| 28 | -4 |
| 29 | 9 |
| 30 | -18 |
| 31 | -27 |
| 32 | 8 |
| 33 | 52 |
| 34 | -73 |
| 35 | 83 |
| 36 | 245 |
| 37 | 88 |
| 38 | -60 |
| 39 | -217 |
| 40 | -157 |
| 41 | 74 |
| 42 | -30 |
| 43 | -99 |
| 44 | 57 |
| 45 | 74 |
| 46 | -29 |
| 47 | -36 |
| 48 | 101 |
| 49 | 320 |
| 50 | -205 |
| 51 | -206 |
| 52 | 125 |
| 53 | -109 |
| 54 | -27 |
| 55 | 139 |
| 56 | -203 |
| 57 | -644 |
| 58 | -629 |
| 59 | 723 |