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 | 2 |
| 3 | 2 |
| 4 | 4 |
| 5 | 4 |
| 6 | 2 |
| 7 | 4 |
| 8 | 8 |
| 9 | 4 |
| 10 | -2 |
| 11 | 16 |
| 12 | 8 |
| 13 | 8 |
| 14 | 0 |
| 15 | 8 |
| 16 | 16 |
| 17 | 32 |
| 18 | 16 |
| 19 | 32 |
| 20 | 16 |
| 21 | 32 |
| 22 | 0 |
| 23 | 64 |
| 24 | 32 |
| 25 | -16 |
| 26 | -64 |
| 27 | -160 |
| 28 | -256 |
| 29 | -128 |
| 30 | -224 |
| 31 | 64 |
| 32 | 128 |
| 33 | 0 |
| 34 | -256 |
| 35 | 256 |
| 36 | -128 |
| 37 | -128 |
| 38 | -512 |
| 39 | 512 |
| 40 | -256 |
| 41 | 512 |
| 42 | 0 |
| 43 | 512 |
| 44 | 0 |
| 45 | -2048 |
| 46 | -2816 |
| 47 | -256 |
| 48 | -1408 |
| 49 | -1408 |
| 50 | -2560 |
| 51 | -2560 |
| 52 | -4096 |
| 53 | -1024 |
| 54 | -1792 |
| 55 | 2048 |