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 | 6 |
| 3 | 30 |
| 4 | 12 |
| 5 | 60 |
| 6 | 84 |
| 7 | 1140 |
| 8 | 120 |
| 9 | 168 |
| 10 | 2340 |
| 11 | 1848 |
| 12 | 360 |
| 13 | 2184 |
| 14 | 1080 |
| 15 | 4368 |
| 16 | 840 |
| 17 | 10440 |
| 18 | 1680 |
| 19 | 7920 |
| 20 | 2520 |
| 21 | 6552 |
| 22 | 3360 |
| 23 | 7560 |
| 24 | 5040 |
| 25 | 13104 |
| 26 | 27720 |
| 27 | 73440 |
| 28 | 36960 |
| 29 | 21840 |
| 30 | 15120 |
| 31 | 72072 |
| 32 | 10080 |
| 33 | 95760 |
| 34 | 26208 |
| 35 | 63840 |
| 36 | 20160 |
| 37 | 146160 |
| 38 | 144144 |
| 39 | 87360 |
| 40 | 174720 |
| 41 | 1071360 |
| 42 | 166320 |