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 | 40 |
| 1 | 504 |
| 2 | 2160 |
| 3 | 6160 |
| 4 | 14040 |
| 5 | 27720 |
| 6 | 49504 |
| 7 | 82080 |
| 8 | 128520 |
| 9 | 192280 |
| 10 | 277200 |
| 11 | 387504 |
| 12 | 527800 |
| 13 | 703080 |
| 14 | 918720 |
| 15 | 1180480 |
| 16 | 1494504 |
| 17 | 1867320 |
| 18 | 2305840 |
| 19 | 2817360 |
| 20 | 3409560 |
| 21 | 4090504 |
| 22 | 4868640 |
| 23 | 5752800 |
| 24 | 6752200 |
| 25 | 7876440 |
| 26 | 9135504 |
| 27 | 10539760 |
| 28 | 12099960 |
| 29 | 13827240 |
| 30 | 15733120 |
| 31 | 17829504 |