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 | 24 |
| 2 | 222 |
| 3 | 984 |
| 4 | 3060 |
| 5 | 7680 |
| 6 | 16674 |
| 7 | 32592 |
| 8 | 58824 |
| 9 | 99720 |
| 10 | 160710 |
| 11 | 248424 |
| 12 | 370812 |
| 13 | 537264 |
| 14 | 758730 |
| 15 | 1047840 |
| 16 | 1419024 |
| 17 | 1888632 |
| 18 | 2475054 |
| 19 | 3198840 |
| 20 | 4082820 |
| 21 | 5152224 |
| 22 | 6434802 |
| 23 | 7960944 |
| 24 | 9763800 |
| 25 | 11879400 |
| 26 | 14346774 |
| 27 | 17208072 |
| 28 | 20508684 |
| 29 | 24297360 |