Reminder: The OEIS is hiring a new managing editor, and the application deadline is January 26.
n | a(n) |
---|---|
0 | 0 |
1 | 0 |
2 | 2 |
3 | 18 |
4 | 128 |
5 | 840 |
6 | 5328 |
7 | 33264 |
8 | 206080 |
9 | 1271808 |
10 | 7833472 |
11 | 48200064 |
12 | 296423424 |
13 | 1822459392 |
14 | 11203152896 |
15 | 68863546368 |
16 | 423273267200 |
17 | 2601614180352 |
18 | 15990421856256 |
19 | 98282063536128 |
20 | 604069867552768 |
21 | 3712780777586688 |
22 | 22819757583302656 |
23 | 140256346936639488 |
[0,0,2,18,128,840,5328,33264,206080,1271808, 7833472,48200064,296423424,1822459392,11203152896, 68863546368,423273267200,2601614180352, 15990421856256,98282063536128,604069867552768, 3712780777586688,22819757583302656, 140256346936639488] |