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 | 1 |
| 3 | 2 |
| 4 | 0 |
| 5 | 0 |
| 6 | -6 |
| 7 | -3 |
| 8 | -12 |
| 9 | -11 |
| 10 | -13 |
| 11 | -22 |
| 12 | -19 |
| 13 | -20 |
| 14 | -30 |
| 15 | -41 |
| 16 | -15 |
| 17 | -55 |
| 18 | -24 |
| 19 | -52 |
| 20 | -41 |
| 21 | -59 |
| 22 | -24 |
| 23 | -109 |
| 24 | -22 |
| 25 | -78 |
| 26 | -42 |
| 27 | -111 |
| 28 | -26 |
| 29 | -131 |
| 30 | -2 |
| 31 | -119 |
| 32 | -75 |
| 33 | -133 |
| 34 | -8 |
| 35 | -214 |
| 36 | 7 |
| 37 | -175 |
| 38 | -68 |
| 39 | -176 |
| 40 | -17 |
| 41 | -209 |
| 42 | 14 |
| 43 | -231 |
| 44 | -73 |
| 45 | -175 |
| 46 | 45 |
| 47 | -349 |
| 48 | -11 |
| 49 | -236 |
| 50 | -20 |
| 51 | -236 |
| 52 | -53 |
| 53 | -384 |
| 54 | 68 |
| 55 | -321 |
| 56 | -56 |
| 57 | -270 |
| 58 | 1 |
| 59 | -457 |
| 60 | 41 |
| 61 | -328 |
| 62 | -48 |