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 | 6 |
| 2 | 30 |
| 3 | 36 |
| 4 | 210 |
| 5 | 216 |
| 6 | 900 |
| 7 | 1296 |
| 8 | 2310 |
| 9 | 7776 |
| 10 | 27000 |
| 11 | 30030 |
| 12 | 44100 |
| 13 | 46656 |
| 14 | 279936 |
| 15 | 510510 |
| 16 | 810000 |
| 17 | 1679616 |
| 18 | 5336100 |
| 19 | 9261000 |
| 20 | 9699690 |
| 21 | 10077696 |
| 22 | 24300000 |
| 23 | 60466176 |
| 24 | 223092870 |
| 25 | 362797056 |
| 26 | 729000000 |
| 27 | 901800900 |
| 28 | 1944810000 |
| 29 | 2176782336 |
| 30 | 6469693230 |
| 31 | 12326391000 |