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 | 16 |
| 2 | 576 |
| 3 | 67986 |
| 4 | 2088576 |
| 5 | 121707070 |
| 6 | 3904508304 |
| 7 | 179900642006 |
| 8 | 5870222299368 |