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 | 2 |
| 3 | 8 |
| 4 | 32 |
| 5 | 40 |
| 6 | 48 |
| 7 | 396 |
| 8 | 704 |
| 9 | 72 |
| 10 | 216 |
| 11 | 144 |
| 12 | 1056 |
| 13 | 360 |
| 14 | 384 |
| 15 | 1320 |
| 16 | 240 |
| 17 | 9000 |
| 18 | 7128 |
| 19 | 480 |
| 20 | 1296 |
| 21 | 15936 |
| 22 | 3072 |
| 23 | 864 |
| 24 | 7344 |
| 25 | 720 |
| 26 | 4992 |
| 27 | 2016 |
| 28 | 6000 |
| 29 | 4752 |
| 30 | 3024 |
| 31 | 9984 |
| 32 | 1920 |
| 33 | 7560 |
| 34 | 22848 |
| 35 | 29160 |
| 36 | 3360 |
| 37 | 13248 |
| 38 | 27720 |
| 39 | 9072 |
| 40 | 9360 |
| 41 | 4032 |
| 42 | 4800 |
| 43 | 16896 |
| 44 | 3840 |
| 45 | 9504 |
| 46 | 23520 |
| 47 | 5040 |