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 | 1 |
| 1 | 2 |
| 2 | 1 |
| 3 | -2 |
| 4 | -2 |
| 5 | 2 |
| 6 | 5 |
| 7 | 0 |
| 8 | -8 |
| 9 | -6 |
| 10 | 7 |
| 11 | 14 |
| 12 | 1 |
| 13 | -18 |
| 14 | -15 |
| 15 | 14 |
| 16 | 30 |
| 17 | 2 |
| 18 | -40 |
| 19 | -32 |
| 20 | 32 |
| 21 | 66 |
| 22 | 6 |
| 23 | -82 |
| 24 | -65 |
| 25 | 60 |
| 26 | 125 |
| 27 | 8 |
| 28 | -157 |
| 29 | -120 |
| 30 | 117 |
| 31 | 238 |
| 32 | 19 |
| 33 | -286 |
| 34 | -222 |
| 35 | 206 |
| 36 | 419 |
| 37 | 28 |
| 38 | -507 |
| 39 | -386 |
| 40 | 366 |
| 41 | 732 |
| 42 | 55 |
| 43 | -864 |
| 44 | -659 |
| 45 | 610 |
| 46 | 1224 |
| 47 | 86 |
| 48 | -1442 |
| 49 | -1090 |
| 50 | 1016 |
| 51 | 2024 |
| 52 | 147 |
| 53 | -2350 |
| 54 | -1775 |
| 55 | 1632 |