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 | 1 |
| 2 | 1 |
| 3 | 4 |
| 4 | 1 |
| 5 | 27 |
| 6 | 36 |
| 7 | 1 |
| 8 | 172 |
| 9 | 864 |
| 10 | 576 |
| 11 | 1 |
| 12 | 1125 |
| 13 | 17500 |
| 14 | 36000 |
| 15 | 14400 |
| 16 | 1 |
| 17 | 7591 |
| 18 | 351000 |
| 19 | 1746000 |
| 20 | 1944000 |
| 21 | 518400 |
| 22 | 1 |
| 23 | 52479 |
| 24 | 7197169 |
| 25 | 80262000 |
| 26 | 191394000 |
| 27 | 133358400 |
| 28 | 25401600 |
| 29 | 1 |
| 30 | 369580 |
| 31 | 151633440 |
| 32 | 3691514176 |
| 33 | 17188416000 |
| 34 | 23866214400 |
| 35 | 11379916800 |
| 36 | 1625702400 |