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 | 0 |
2 | 2 |
3 | 9984 |
4 | 28419102720 |
5 | 175302739963548794880 |
6 | 5801674463718565478400000000000000 |
7 | 2113937863028052653298578438638220083200000000000000 |
8 | 15500609395854457241550377325238753195602871153217230602240000000000000000 |