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 | 0 |
| 1 | 1 |
| 2 | 3 |
| 3 | 1 |
| 4 | 0 |
| 5 | 3 |
| 6 | 7 |
| 7 | 12 |
| 8 | 8 |
| 9 | 5 |
| 10 | 11 |
| 11 | 18 |
| 12 | 26 |
| 13 | 18 |
| 14 | 11 |
| 15 | 5 |
| 16 | 0 |
| 17 | -9 |
| 18 | -19 |
| 19 | -30 |
| 20 | -42 |
| 21 | -29 |
| 22 | -20 |
| 23 | -10 |
| 24 | 1 |
| 25 | 13 |
| 26 | 0 |
| 27 | -14 |
| 28 | -29 |
| 29 | -45 |
| 30 | -62 |
| 31 | -80 |
| 32 | -62 |
| 33 | -48 |
| 34 | -33 |
| 35 | -17 |
| 36 | 0 |
| 37 | -19 |
| 38 | -39 |
| 39 | -60 |
| 40 | -82 |
| 41 | -105 |
| 42 | -129 |
| 43 | -104 |
| 44 | -83 |
| 45 | -63 |
| 46 | -44 |
| 47 | -21 |
| 48 | 1 |
| 49 | 27 |
| 50 | 54 |
| 51 | 82 |
| 52 | 106 |
| 53 | 81 |
| 54 | 55 |
| 55 | 28 |
| 56 | 0 |
| 57 | -29 |
| 58 | -59 |
| 59 | -90 |
| 60 | -122 |
| 61 | -90 |
| 62 | -59 |
| 63 | -29 |
| 64 | 0 |
| 65 | 33 |
| 66 | 67 |
| 67 | 102 |
| 68 | 138 |
| 69 | 175 |
| 70 | 213 |
| 71 | 252 |
| 72 | 292 |
| 73 | 333 |
| 74 | 293 |
| 75 | 257 |
| 76 | 222 |
| 77 | 188 |
| 78 | 155 |
| 79 | 118 |
| 80 | 80 |
| 81 | 41 |
| 82 | 83 |