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 | 8 |
| 2 | 128 |
| 3 | 1808 |
| 4 | 25808 |
| 5 | 368144 |
| 6 | 5251712 |
| 7 | 74917424 |
| 8 | 1068722240 |
| 9 | 15245681888 |
| 10 | 217484775440 |
| 11 | 3102493407248 |
| 12 | 44258111045072 |
| 13 | 631356826964288 |
| 14 | 9006517303652528 |
| 15 | 128480995970256128 |
| 16 | 1832824583461859168 |