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 | 2 |
| 3 | 6 |
| 4 | 12 |
| 5 | 36 |
| 6 | 60 |
| 7 | 180 |
| 8 | 360 |
| 9 | 840 |
| 10 | 2520 |
| 11 | 7560 |
| 12 | 15120 |
| 13 | 45360 |
| 14 | 55440 |
| 15 | 166320 |
| 16 | 498960 |
| 17 | 720720 |
| 18 | 2162160 |
| 19 | 6486480 |
| 20 | 10810800 |
| 21 | 32432400 |
| 22 | 61261200 |
| 23 | 183783600 |
| 24 | 551350800 |
| 25 | 1102701600 |
| 26 | 2327925600 |
| 27 | 6983776800 |
| 28 | 20951330400 |
| 29 | 48886437600 |
| 30 | 146659312800 |
| 31 | 374796021600 |
| 32 | 1124388064800 |