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) |
|---|---|
| 1 | 0 |
| 2 | 3 |
| 3 | -2 |
| 4 | 10 |
| 5 | 2 |
| 6 | 4 |
| 7 | -8 |
| 8 | 4 |
| 9 | -14 |
| 10 | 18 |
| 11 | -8 |
| 12 | 16 |
| 13 | 6 |
| 14 | 4 |
| 15 | 8 |
| 16 | 32 |
| 17 | 10 |
| 18 | 4 |
| 19 | -24 |
| 20 | 44 |
| 21 | -32 |
| 22 | 24 |
| 23 | -20 |
| 24 | 0 |
| 25 | 34 |
| 26 | 42 |
| 27 | -92 |
| 28 | 24 |
| 29 | -10 |
| 30 | 72 |
| 31 | -24 |
| 32 | 224 |
| 33 | -32 |
| 34 | 90 |
| 35 | 8 |
| 36 | 32 |
| 37 | 6 |
| 38 | -12 |
| 39 | 24 |
| 40 | 32 |
| 41 | 18 |
| 42 | 16 |
| 43 | -20 |
| 44 | 64 |
| 45 | -16 |
| 46 | 44 |
| 47 | -28 |
| 48 | 48 |
| 49 | -44 |
| 50 | 154 |
| 51 | 40 |
| 52 | 144 |
| 53 | 58 |
| 54 | -68 |
| 55 | 48 |
| 56 | -16 |
| 57 | -96 |
| 58 | 22 |
| 59 | -56 |
| 60 | 176 |
| 61 | -6 |
| 62 | 24 |
| 63 | -216 |
| 64 | 116 |
| 65 | 84 |
| 66 | 96 |
| 67 | -68 |
| 68 | 220 |
| 69 | -80 |
| 70 | 136 |
| 71 | -16 |
| 72 | -32 |
| 73 | -36 |
| 74 | 90 |