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) |
---|---|
1 | 2 |
2 | 3 |
3 | 7 |
4 | 13 |
5 | 61 |
6 | 241 |
7 | 2521 |
8 | 20161 |
9 | 72577 |
10 | 604801 |
11 | 39916801 |
12 | 59875201 |
13 | 3113510401 |
14 | 17435658241 |
15 | 186810624001 |
16 | 10461394944001 |
17 | 118562476032001 |
18 | 0 |
19 | 24329020081766401 |
20 | 304112751022080001 |
21 | 12772735542927360001 |