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 | 0 |
1 | 0 |
2 | 0 |
3 | 6 |
4 | 2112 |
5 | 98820 |
6 | 1574400 |
7 | 13676250 |
8 | 80631936 |
9 | 363204072 |
10 | 1342218240 |
11 | 4261697550 |
12 | 12000120000 |
13 | 30653510316 |
14 | 72237215232 |
15 | 159067919010 |
16 | 330577363200 |
17 | 653537970000 |
18 | 1236951760896 |
19 | 2253171240342 |
20 | 3967187906880 |
21 | 6776444390100 |
22 | 11264003520000 |
23 | 18268445544426 |