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 | 1 |
| 1 | 1 |
| 2 | 16 |
| 3 | 1251 |
| 4 | 481376 |
| 5 | 930005021 |
| 6 | 9082872004032 |
| 7 | 448356882751890343 |
| 8 | 111655372144044770735104 |
| 9 | 140027604270897805074354921849 |
| 10 | 883117855371077265832943940474315776 |