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 | 330 |
| 2 | 330 |
| 3 | 43890 |
| 4 | 2310 |
| 5 | 210 |
| 6 | 53130 |
| 7 | 2310 |
| 8 | 9690 |
| 9 | 53130 |
| 10 | 2310 |
| 11 | 3570 |
| 12 | 79170 |
| 13 | 30030 |
| 14 | 1360590 |
| 15 | 53130 |
| 16 | 53130 |
| 17 | 30030 |
| 18 | 43890 |
| 19 | 177521190 |
| 20 | 1607970 |
| 21 | 11741730 |
| 22 | 690690 |
| 23 | 75992317170 |
| 24 | 340510170 |
| 25 | 325046311590 |
| 26 | 1618964990108856390 |