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 | 0 |
| 2 | 96 |
| 3 | 384 |
| 4 | 1248 |
| 5 | 3840 |
| 6 | 11616 |
| 7 | 34944 |
| 8 | 104928 |
| 9 | 314880 |
| 10 | 944736 |
| 11 | 2834304 |
| 12 | 8503008 |
| 13 | 25509120 |
| 14 | 76527456 |
| 15 | 229582464 |
| 16 | 688747488 |
| 17 | 2066242560 |
| 18 | 6198727776 |
| 19 | 18596183424 |
| 20 | 55788550368 |
| 21 | 167365651200 |
| 22 | 502096953696 |
| 23 | 1506290861184 |
| 24 | 4518872583648 |
| 25 | 13556617751040 |