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 | 4 |
| 4 | -3 |
| 5 | 1 |
| 6 | 8 |
| 7 | -6 |
| 8 | 3 |
| 9 | -1 |
| 10 | 16 |
| 11 | -12 |
| 12 | 7 |
| 13 | -3 |
| 14 | 1 |
| 15 | 32 |
| 16 | -24 |
| 17 | 14 |
| 18 | -7 |
| 19 | 3 |
| 20 | -1 |
| 21 | 64 |
| 22 | -48 |
| 23 | 28 |
| 24 | -15 |
| 25 | 7 |
| 26 | -3 |
| 27 | 1 |
| 28 | 128 |
| 29 | -96 |
| 30 | 56 |
| 31 | -30 |
| 32 | 15 |
| 33 | -7 |
| 34 | 3 |
| 35 | -1 |
| 36 | 256 |
| 37 | -192 |
| 38 | 112 |
| 39 | -60 |
| 40 | 31 |
| 41 | -15 |
| 42 | 7 |
| 43 | -3 |
| 44 | 1 |
| 45 | 512 |
| 46 | -384 |
| 47 | 224 |
| 48 | -120 |
| 49 | 62 |
| 50 | -31 |
| 51 | 15 |
| 52 | -7 |
| 53 | 3 |
| 54 | -1 |
| 55 | 1024 |
| 56 | -768 |
| 57 | 448 |
| 58 | -240 |
| 59 | 124 |
| 60 | -63 |
| 61 | 31 |
| 62 | -15 |
| 63 | 7 |
| 64 | -3 |
| 65 | 1 |
| 66 | 2048 |
| 67 | -1536 |
| 68 | 896 |
| 69 | -480 |
| 70 | 248 |
| 71 | -126 |
| 72 | 63 |
| 73 | -31 |
| 74 | 15 |
| 75 | -7 |
| 76 | 3 |