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 | 1 |
2 | 4 |
3 | 22 |
4 | 140 |
5 | 950 |
6 | 6692 |
7 | 48284 |
8 | 354216 |
9 | 2630310 |
10 | 19713188 |
11 | 148817524 |
12 | 1130011896 |
13 | 8621650492 |
14 | 66043991080 |
15 | 507628779896 |
16 | 3913088587472 |
17 | 30240258982662 |
18 | 234210742764964 |
19 | 1817484391184900 |
20 | 14128074297880536 |
21 | 109992814064010196 |
22 | 857525947713607096 |
23 | 6693820044841440008 |