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 | 84 |
| 2 | 270 |
| 3 | 1488 |
| 4 | 1638 |
| 5 | 24384 |
| 6 | 35640 |
| 7 | 199584 |
| 8 | 2142720 |
| 9 | 12999168 |
| 10 | 100651008 |
| 11 | 208565280 |
| 12 | 240589440 |
| 13 | 470564640 |
| 14 | 3899750400 |
| 15 | 6039429120 |
| 16 | 25769607168 |
| 17 | 36639203328 |
| 18 | 53798734080 |
| 19 | 231758392320 |
| 20 | 314039721600 |
| 21 | 412316073984 |
| 22 | 5566503720960 |
| 23 | 5967138078720 |
| 24 | 302512616524800 |