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 | 0 |
| 1 | 24 |
| 2 | 84 |
| 3 | 180 |
| 4 | 312 |
| 5 | 480 |
| 6 | 684 |
| 7 | 924 |
| 8 | 1200 |
| 9 | 1512 |
| 10 | 1860 |
| 11 | 2244 |
| 12 | 2664 |
| 13 | 3120 |
| 14 | 3612 |
| 15 | 4140 |
| 16 | 4704 |
| 17 | 5304 |
| 18 | 5940 |
| 19 | 6612 |
| 20 | 7320 |
| 21 | 8064 |
| 22 | 8844 |
| 23 | 9660 |
| 24 | 10512 |
| 25 | 11400 |
| 26 | 12324 |
| 27 | 13284 |
| 28 | 14280 |
| 29 | 15312 |
| 30 | 16380 |
| 31 | 17484 |
| 32 | 18624 |
| 33 | 19800 |
| 34 | 21012 |
| 35 | 22260 |
| 36 | 23544 |
| 37 | 24864 |
| 38 | 26220 |
| 39 | 27612 |
| 40 | 29040 |
| 41 | 30504 |
| 42 | 32004 |