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 | 4 |
| 2 | 12 |
| 3 | 18 |
| 4 | 72 |
| 5 | 192 |
| 6 | 270 |
| 7 | 1488 |
| 8 | 1872 |
| 9 | 1482 |
| 10 | 1872 |
| 11 | 1152 |
| 12 | 2268 |
| 13 | 6552 |
| 14 | 3672 |
| 15 | 6552 |
| 16 | 10890 |
| 17 | 3528 |
| 18 | 5280 |
| 19 | 7560 |
| 20 | 7488 |
| 21 | 13680 |
| 22 | 23040 |
| 23 | 17388 |
| 24 | 29760 |
| 25 | 21600 |
| 26 | 23040 |
| 27 | 65520 |
| 28 | 87120 |
| 29 | 51480 |
| 30 | 34848 |
| 31 | 65268 |
| 32 | 127680 |
| 33 | 122400 |
| 34 | 134400 |
| 35 | 114660 |
| 36 | 137088 |
| 37 | 206640 |
| 38 | 134400 |