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 | 32768 |
| 1 | 2476099 |
| 2 | 24300000 |
| 3 | 115856201 |
| 4 | 380204032 |
| 5 | 992436543 |
| 6 | 2219006624 |
| 7 | 4437053125 |
| 8 | 8153726976 |
| 9 | 14025517307 |
| 10 | 22877577568 |
| 11 | 35723051649 |
| 12 | 53782400000 |
| 13 | 78502725751 |
| 14 | 111577100832 |
| 15 | 154963892093 |
| 16 | 210906087424 |
| 17 | 281950621875 |
| 18 | 370967703776 |
| 19 | 481170140857 |
| 20 | 616132666368 |