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 | 32 |
| 2 | 3072 |
| 3 | 429760 |
| 4 | 71386880 |
| 5 | 13057591296 |
| 6 | 2539643772928 |
| 7 | 515384111218688 |
| 8 | 107895796673347584 |
| 9 | 23131454701441122304 |
| 10 | 5052953723661587578880 |
| 11 | 1120663604347562971103232 |
| 12 | 251676943773831910414876672 |