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 | 1 |
| 2 | 1 |
| 3 | 6 |
| 4 | 12 |
| 5 | 40 |
| 6 | 120 |
| 7 | 224 |
| 8 | 896 |
| 9 | 1152 |
| 10 | 5760 |
| 11 | 5632 |
| 12 | 33792 |
| 13 | 26624 |
| 14 | 186368 |
| 15 | 122880 |
| 16 | 983040 |
| 17 | 557056 |
| 18 | 5013504 |
| 19 | 2490368 |
| 20 | 24903680 |
| 21 | 11010048 |
| 22 | 121110528 |
| 23 | 48234496 |
| 24 | 578813952 |
| 25 | 209715200 |
| 26 | 2726297600 |
| 27 | 905969664 |
| 28 | 12683575296 |
| 29 | 3892314112 |
| 30 | 58384711680 |
| 31 | 16642998272 |
| 32 | 266287972352 |
| 33 | 70866960384 |