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 | 1 |
| 2 | 0 |
| 3 | 2 |
| 4 | 0 |
| 5 | 1 |
| 6 | 3 |
| 7 | 0 |
| 8 | 3 |
| 9 | 0 |
| 10 | 6 |
| 11 | 1 |
| 12 | 3 |
| 13 | 5 |
| 14 | 0 |
| 15 | 13 |
| 16 | -3 |
| 17 | 15 |
| 18 | -3 |
| 19 | 14 |
| 20 | 6 |
| 21 | 11 |
| 22 | 16 |
| 23 | -4 |
| 24 | 38 |
| 25 | -16 |
| 26 | 51 |
| 27 | -24 |
| 28 | 65 |
| 29 | -14 |
| 30 | 46 |
| 31 | 21 |
| 32 | 10 |
| 33 | 80 |
| 34 | -49 |
| 35 | 154 |
| 36 | -102 |
| 37 | 216 |
| 38 | -136 |
| 39 | 242 |
| 40 | -119 |
| 41 | 198 |
| 42 | 1 |
| 43 | 68 |
| 44 | 189 |
| 45 | -153 |
| 46 | 486 |
| 47 | -425 |
| 48 | 775 |
| 49 | -672 |
| 50 | 1024 |
| 51 | -779 |
| 52 | 1035 |
| 53 | -628 |
| 54 | 782 |
| 55 | -97 |
| 56 | 96 |
| 57 | 816 |
| 58 | -930 |
| 59 | 2069 |
| 60 | -2203 |
| 61 | 3428 |
| 62 | -3413 |
| 63 | 4546 |
| 64 | -4130 |
| 65 | 4958 |