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 | 1 |
| 2 | -1 |
| 3 | -2 |
| 4 | 1 |
| 5 | 1 |
| 6 | -8 |
| 7 | 6 |
| 8 | 3 |
| 9 | -1 |
| 10 | 64 |
| 11 | -40 |
| 12 | -30 |
| 13 | 5 |
| 14 | 1 |
| 15 | 1024 |
| 16 | -704 |
| 17 | -440 |
| 18 | 110 |
| 19 | 11 |
| 20 | -1 |
| 21 | -32768 |
| 22 | 21504 |
| 23 | 14784 |
| 24 | -3080 |
| 25 | -462 |
| 26 | 21 |
| 27 | 1 |
| 28 | -2097152 |
| 29 | 1409024 |
| 30 | 924672 |
| 31 | -211904 |
| 32 | -26488 |
| 33 | 1806 |
| 34 | 43 |
| 35 | -1 |
| 36 | 268435456 |
| 37 | -178257920 |
| 38 | -119767040 |
| 39 | 26199040 |
| 40 | 3602368 |
| 41 | -204680 |
| 42 | -7310 |
| 43 | 85 |
| 44 | 1 |