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 | 1 |
| 2 | 1 |
| 3 | 1 |
| 4 | 0 |
| 5 | 1 |
| 6 | -1 |
| 7 | 1 |
| 8 | -2 |
| 9 | 2 |
| 10 | -3 |
| 11 | 1 |
| 12 | -1 |
| 13 | 1 |
| 14 | -5 |
| 15 | 7 |
| 16 | -7 |
| 17 | 1 |
| 18 | 3 |
| 19 | 1 |
| 20 | -12 |
| 21 | 16 |
| 22 | -9 |
| 23 | 1 |
| 24 | 1 |
| 25 | 2 |
| 26 | -11 |
| 27 | 29 |
| 28 | -32 |
| 29 | 1 |
| 30 | 28 |
| 31 | 1 |
| 32 | -49 |
| 33 | 46 |
| 34 | -15 |
| 35 | 16 |
| 36 | -18 |
| 37 | 1 |
| 38 | -17 |
| 39 | 67 |
| 40 | -67 |
| 41 | 1 |
| 42 | 53 |
| 43 | 1 |
| 44 | -140 |
| 45 | 162 |
| 46 | -21 |
| 47 | 1 |
| 48 | -103 |
| 49 | 2 |
| 50 | 103 |
| 51 | 121 |
| 52 | -244 |
| 53 | 1 |
| 54 | 55 |
| 55 | 211 |
| 56 | -305 |
| 57 | 154 |
| 58 | -27 |
| 59 | 1 |
| 60 | -17 |
| 61 | 1 |
| 62 | -29 |
| 63 | 219 |
| 64 | -486 |
| 65 | 496 |
| 66 | -73 |
| 67 | 1 |
| 68 | -592 |
| 69 | 232 |
| 70 | 766 |
| 71 | 1 |
| 72 | -931 |
| 73 | 1 |
| 74 | -35 |
| 75 | 1278 |
| 76 | -852 |
| 77 | 211 |
| 78 | -529 |
| 79 | 1 |
| 80 | 322 |
| 81 | 327 |
| 82 | -39 |
| 83 | 1 |
| 84 | -1654 |
| 85 | 1821 |
| 86 | -41 |
| 87 | 379 |
| 88 | -1492 |
| 89 | 1 |
| 90 | 750 |
| 91 | 925 |
| 92 | -1584 |