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 | 0 |
| 4 | 2 |
| 5 | 5 |
| 6 | -2 |
| 7 | -6 |
| 8 | 1 |
| 9 | 10 |
| 10 | 7 |
| 11 | 13 |
| 12 | -11 |
| 13 | -15 |
| 14 | -5 |
| 15 | 32 |
| 16 | 0 |
| 17 | 34 |
| 18 | -23 |
| 19 | 5 |
| 20 | 30 |
| 21 | -66 |
| 22 | 33 |
| 23 | 29 |
| 24 | -18 |
| 25 | -60 |
| 26 | -17 |
| 27 | 13 |
| 28 | 69 |
| 29 | -21 |
| 30 | -65 |
| 31 | 65 |
| 32 | 17 |
| 33 | 8 |
| 34 | 50 |
| 35 | -6 |
| 36 | 24 |
| 37 | -33 |
| 38 | -23 |
| 39 | 130 |
| 40 | 13 |
| 41 | 115 |
| 42 | -93 |
| 43 | 184 |
| 44 | -132 |
| 45 | 4 |
| 46 | 48 |
| 47 | -11 |
| 48 | 31 |
| 49 | 70 |
| 50 | -99 |
| 51 | -23 |
| 52 | 192 |
| 53 | -258 |
| 54 | 154 |
| 55 | -68 |
| 56 | 155 |
| 57 | -18 |
| 58 | 16 |
| 59 | -35 |
| 60 | -101 |
| 61 | -11 |