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 | 3 |
| 2 | 8 |
| 3 | 24 |
| 4 | 48 |
| 5 | 120 |
| 6 | 288 |
| 7 | 360 |
| 8 | 840 |
| 9 | 1680 |
| 10 | 5040 |
| 11 | 11880 |
| 12 | 32760 |
| 13 | 143640 |
| 14 | 201600 |
| 15 | 491400 |
| 16 | 776160 |
| 17 | 2042040 |
| 18 | 3500640 |
| 19 | 7447440 |
| 20 | 9480240 |
| 21 | 17297280 |
| 22 | 34234200 |
| 23 | 143256960 |
| 24 | 514337040 |
| 25 | 555120720 |
| 26 | 569729160 |
| 27 | 1656408600 |
| 28 | 4283571600 |
| 29 | 8148853440 |
| 30 | 10951831800 |
| 31 | 35415099720 |
| 32 | 51437786400 |