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 | 0 |
| 3 | -8 |
| 4 | 0 |
| 5 | 8 |
| 6 | -32 |
| 7 | -16 |
| 8 | 0 |
| 9 | -240 |
| 10 | 32 |
| 11 | -24 |
| 12 | -128 |
| 13 | 24 |
| 14 | -64 |
| 15 | 0 |
| 16 | 0 |
| 17 | 32 |
| 18 | -960 |
| 19 | -40 |
| 20 | 128 |
| 21 | -744 |
| 22 | -96 |
| 23 | -48 |
| 24 | -512 |
| 25 | 240 |
| 26 | 96 |
| 27 | -4888 |
| 28 | -256 |
| 29 | 56 |
| 30 | 0 |
| 31 | -64 |
| 32 | 0 |
| 33 | -1504 |
| 34 | 128 |
| 35 | 264 |
| 36 | -3840 |
| 37 | 72 |
| 38 | -160 |
| 39 | -784 |
| 40 | 512 |
| 41 | 80 |
| 42 | -2976 |
| 43 | -88 |
| 44 | -384 |
| 45 | -2312 |
| 46 | -192 |
| 47 | -96 |
| 48 | -2048 |
| 49 | -2016 |
| 50 | 960 |
| 51 | -1560 |
| 52 | 384 |
| 53 | 104 |