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 | 6 |
| 3 | 42 |
| 4 | 120 |
| 5 | 168 |
| 6 | 270 |
| 7 | 280 |
| 8 | 312 |
| 9 | 496 |
| 10 | 672 |
| 11 | 728 |
| 12 | 840 |
| 13 | 1080 |
| 14 | 1560 |
| 15 | 1782 |
| 16 | 1806 |
| 17 | 1890 |
| 18 | 2044 |
| 19 | 2184 |
| 20 | 2520 |
| 21 | 3472 |
| 22 | 3640 |
| 23 | 3913 |
| 24 | 4256 |
| 25 | 5880 |
| 26 | 6048 |
| 27 | 6552 |
| 28 | 6615 |
| 29 | 7224 |
| 30 | 7560 |
| 31 | 7826 |
| 32 | 8128 |
| 33 | 9120 |
| 34 | 9424 |
| 35 | 9933 |
| 36 | 10804 |
| 37 | 10920 |
| 38 | 11400 |
| 39 | 12040 |
| 40 | 12768 |
| 41 | 13230 |
| 42 | 13626 |
| 43 | 14040 |