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) |
|---|---|
| 0 | 0 |
| 1 | 60 |
| 2 | 360 |
| 3 | 1260 |
| 4 | 3360 |
| 5 | 7560 |
| 6 | 15120 |
| 7 | 27720 |
| 8 | 47520 |
| 9 | 77220 |
| 10 | 120120 |
| 11 | 180180 |
| 12 | 262080 |
| 13 | 371280 |
| 14 | 514080 |
| 15 | 697680 |
| 16 | 930240 |
| 17 | 1220940 |
| 18 | 1580040 |
| 19 | 2018940 |
| 20 | 2550240 |
| 21 | 3187800 |
| 22 | 3946800 |
| 23 | 4843800 |
| 24 | 5896800 |
| 25 | 7125300 |
| 26 | 8550360 |
| 27 | 10194660 |
| 28 | 12082560 |
| 29 | 14240160 |
| 30 | 16695360 |
| 31 | 19477920 |
| 32 | 22619520 |