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 | 20 |
3 | 112 |
4 | 736 |
5 | 5632 |
6 | 49024 |
7 | 474112 |
8 | 5017600 |
9 | 57597952 |
10 | 712597504 |
11 | 9446981632 |
12 | 133474877440 |
13 | 2000265674752 |
14 | 31666683510784 |
15 | 527786775150592 |
16 | 9233419259084800 |
17 | 169106747636580352 |
18 | 3234542505882025984 |
19 | 64473076850860490752 |
20 | 1336621867385969704960 |
21 | 28769619371258703511552 |