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 | 0 |
2 | 2 |
3 | 3 |
4 | 104 |
5 | 570 |
6 | 19284 |
7 | 220500 |
8 | 7975008 |
9 | 148889664 |
10 | 5911249680 |
11 | 157016471040 |
12 | 6913129099392 |
13 | 239681708117280 |
14 | 11734594390915200 |
15 | 501510627153244800 |
16 | 27265653826293749760 |
17 | 1380895751066249779200 |
18 | 83060557136719693406208 |