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 | 4 |
2 | 3 |
3 | 4 |
4 | 2 |
5 | -4 |
6 | 45 |
7 | 561 |
8 | 6549 |
9 | 69985 |
10 | 690493 |
11 | 6545056 |
12 | 60615397 |
13 | 555560046 |
14 | 5070271362 |
15 | 46223804313 |
16 | 421692578206 |
17 | 3853431791690 |
18 | 35289854434775 |
19 | 323979090116197 |
20 | 2981921009910364 |
21 | 27516571651291205 |
22 | 254562416350667928 |