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 | 1 |
2 | 0 |
3 | 4 |
4 | 6 |
5 | 48 |
6 | 200 |
7 | 1364 |
8 | 9016 |
9 | 71088 |
10 | 607920 |
11 | 5772528 |
12 | 59790720 |
13 | 673839456 |
14 | 8210152704 |
15 | 107668087104 |
16 | 1513106471040 |
17 | 22700196933120 |
18 | 362277092798208 |
19 | 6130771723664640 |
20 | 109694104262443008 |
21 | 2069581743476587008 |
22 | 41071931895114372096 |
23 | 855436794313229319168 |