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 | 6 |
| 1 | 6 |
| 2 | -6 |
| 3 | 24 |
| 4 | 12 |
| 5 | -24 |
| 6 | 54 |
| 7 | 18 |
| 8 | -54 |
| 9 | 96 |
| 10 | 24 |
| 11 | -96 |
| 12 | 150 |
| 13 | 30 |
| 14 | -150 |
| 15 | 216 |
| 16 | 36 |
| 17 | -216 |
| 18 | 294 |
| 19 | 42 |
| 20 | -294 |
| 21 | 384 |
| 22 | 48 |
| 23 | -384 |
| 24 | 486 |
| 25 | 54 |
| 26 | -486 |
| 27 | 600 |
| 28 | 60 |
| 29 | -600 |
| 30 | 726 |
| 31 | 66 |
| 32 | -726 |
| 33 | 864 |
| 34 | 72 |
| 35 | -864 |
| 36 | 1014 |
| 37 | 78 |
| 38 | -1014 |
| 39 | 1176 |
| 40 | 84 |
| 41 | -1176 |
| 42 | 1350 |
| 43 | 90 |
| 44 | -1350 |
| 45 | 1536 |
| 46 | 96 |
| 47 | -1536 |
| 48 | 1734 |
| 49 | 102 |
| 50 | -1734 |