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 | 1 |
2 | 2 |
3 | 12 |
4 | 132 |
5 | 2664 |
6 | 86328 |
7 | 4257504 |
8 | 302249232 |
9 | 29749088160 |
10 | 3929593244256 |
11 | 678729769735680 |
12 | 149951093054923584 |
13 | 41593439995316826624 |
14 | 14254785976456164378240 |
15 | 5952723682598023085466624 |
16 | 2992204352832467277009072384 |
17 | 1791038631707465961597691673088 |