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 | 0 |
| 2 | 6 |
| 3 | 36 |
| 4 | 120 |
| 5 | 210 |
| 6 | 300 |
| 7 | 630 |
| 8 | 1176 |
| 9 | 2016 |
| 10 | 3240 |
| 11 | 3570 |
| 12 | 4950 |
| 13 | 7140 |
| 14 | 7260 |
| 15 | 10296 |
| 16 | 14196 |
| 17 | 19110 |
| 18 | 23436 |
| 19 | 25200 |
| 20 | 32640 |
| 21 | 39060 |
| 22 | 41616 |
| 23 | 52326 |
| 24 | 61776 |
| 25 | 64980 |
| 26 | 79800 |
| 27 | 97020 |
| 28 | 116886 |
| 29 | 139656 |
| 30 | 145530 |
| 31 | 165600 |
| 32 | 195000 |
| 33 | 228150 |
| 34 | 242556 |
| 35 | 265356 |
| 36 | 304590 |
| 37 | 306936 |
| 38 | 349866 |
| 39 | 353220 |
| 40 | 404550 |
| 41 | 426426 |
| 42 | 461280 |