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 | 4 |
1 | 4 |
2 | 64 |
3 | 6400 |
4 | 5017600 |
5 | 33738342400 |
6 | 2008645953126400 |
7 | 1070407428421058560000 |
8 | 5124408580006984170864640000 |
9 | 220656234047362257307900743516160000 |
10 | 85495432669493277396354169745064287272960000 |
11 | 298114237913837782686540845369489025952802406400000000 |
12 | 9355246290649672947599943358541996936410690283965618585600000000 |