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 | 0 |
| 2 | -2 |
| 3 | -5 |
| 4 | -1 |
| 5 | -6 |
| 6 | -12 |
| 7 | -5 |
| 8 | -13 |
| 9 | -22 |
| 10 | -12 |
| 11 | -1 |
| 12 | -13 |
| 13 | -26 |
| 14 | -12 |
| 15 | -27 |
| 16 | -11 |
| 17 | -28 |
| 18 | -46 |
| 19 | -65 |
| 20 | -45 |
| 21 | -66 |
| 22 | -88 |
| 23 | -111 |
| 24 | -87 |
| 25 | -112 |
| 26 | -86 |
| 27 | -113 |
| 28 | -141 |
| 29 | -112 |
| 30 | -142 |
| 31 | -111 |
| 32 | -143 |
| 33 | -176 |
| 34 | -142 |
| 35 | -107 |
| 36 | -71 |
| 37 | -108 |
| 38 | -70 |
| 39 | -31 |
| 40 | 9 |
| 41 | -32 |
| 42 | 10 |
| 43 | 53 |
| 44 | 97 |
| 45 | 52 |
| 46 | 98 |
| 47 | 51 |
| 48 | 99 |
| 49 | 148 |
| 50 | 198 |
| 51 | 147 |
| 52 | 199 |
| 53 | 146 |