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 | 2 |
| 1 | 2 |
| 2 | -1 |
| 3 | -3 |
| 4 | 2 |
| 5 | 1 |
| 6 | -4 |
| 7 | 6 |
| 8 | 2 |
| 9 | -1 |
| 10 | 5 |
| 11 | -10 |
| 12 | -9 |
| 13 | 2 |
| 14 | 1 |
| 15 | 6 |
| 16 | -19 |
| 17 | -16 |
| 18 | 12 |
| 19 | 2 |
| 20 | -1 |
| 21 | -7 |
| 22 | 28 |
| 23 | 42 |
| 24 | -22 |
| 25 | -15 |
| 26 | 2 |
| 27 | 1 |
| 28 | -8 |
| 29 | 44 |
| 30 | 68 |
| 31 | -74 |
| 32 | -28 |
| 33 | 18 |
| 34 | 2 |
| 35 | -1 |
| 36 | 9 |
| 37 | -60 |
| 38 | -138 |
| 39 | 126 |
| 40 | 115 |
| 41 | -34 |
| 42 | -21 |
| 43 | 2 |
| 44 | 1 |
| 45 | 10 |
| 46 | -85 |
| 47 | -208 |
| 48 | 316 |
| 49 | 202 |
| 50 | -165 |
| 51 | -40 |
| 52 | 24 |
| 53 | 2 |
| 54 | -1 |
| 55 | -11 |
| 56 | 110 |
| 57 | 363 |
| 58 | -506 |
| 59 | -605 |
| 60 | 296 |
| 61 | 224 |
| 62 | -46 |
| 63 | -27 |
| 64 | 2 |
| 65 | 1 |
| 66 | -12 |
| 67 | 146 |
| 68 | 518 |
| 69 | -1059 |
| 70 | -1008 |
| 71 | 1032 |
| 72 | 408 |
| 73 | -292 |
| 74 | -52 |