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 | -4 |
| 2 | 6 |
| 3 | -8 |
| 4 | 13 |
| 5 | -12 |
| 6 | 14 |
| 7 | -24 |
| 8 | 18 |
| 9 | -20 |
| 10 | 32 |
| 11 | -24 |
| 12 | 31 |
| 13 | -40 |
| 14 | 30 |
| 15 | -32 |
| 16 | 48 |
| 17 | -48 |
| 18 | 38 |
| 19 | -56 |
| 20 | 42 |
| 21 | -44 |
| 22 | 78 |
| 23 | -48 |
| 24 | 57 |
| 25 | -72 |
| 26 | 54 |
| 27 | -72 |
| 28 | 80 |
| 29 | -60 |
| 30 | 62 |
| 31 | -104 |
| 32 | 84 |
| 33 | -68 |
| 34 | 96 |
| 35 | -72 |
| 36 | 74 |
| 37 | -124 |
| 38 | 96 |
| 39 | -80 |
| 40 | 121 |
| 41 | -84 |
| 42 | 108 |
| 43 | -120 |
| 44 | 90 |
| 45 | -112 |
| 46 | 128 |
| 47 | -120 |
| 48 | 98 |
| 49 | -156 |
| 50 | 102 |
| 51 | -104 |
| 52 | 192 |
| 53 | -108 |
| 54 | 110 |