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 | 1 |
2 | 3 |
3 | 45 |
4 | 45 |
5 | 15855 |
6 | 280665 |
7 | 4774980 |
8 | 4393585185 |
9 | 6522452145 |
10 | 166260770280 |
11 | 4321816939440 |
12 | 15939674132892510 |
13 | 22654052989616460555 |
14 | 22654052989616460555 |
15 | 202608454566431632290 |