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 | 2 |
2 | 20 |
3 | 296 |
4 | 5168 |
5 | 98896 |
6 | 2006592 |
7 | 42403584 |
8 | 923292672 |
9 | 20570204672 |
10 | 466681402112 |
11 | 10744734700032 |
12 | 250415336695808 |
13 | 5896251565619200 |
14 | 140051037257007104 |
15 | 3351752341884928000 |
16 | 80744484314316193792 |
17 | 1956433860220223062016 |
18 | 47647871136991576260608 |