Reminder: The OEIS is hiring a new managing editor, and the application deadline is January 26.
n | a(n) |
---|---|
0 | 1 |
1 | 1 |
2 | 1 |
3 | 2 |
4 | 6 |
5 | 24 |
6 | 120 |
7 | 720 |
8 | 5040 |
9 | 20160 |
10 | 120960 |
11 | 907200 |
12 | 7983360 |
13 | 79833600 |
14 | 889574400 |
15 | 10897286400 |
16 | 81729648000 |
17 | 871782912000 |
18 | 11115232128000 |
19 | 160059342643200 |
20 | 2534272925184000 |
21 | 43444678717440000 |
22 | 798295971432960000 |
23 | 8781255685762560000 |
24 | 134645920515025920000 |
[1,1,1,2,6,24,120,720,5040,20160,120960,907200, 7983360,79833600,889574400,10897286400, 81729648000,871782912000,11115232128000, 160059342643200,2534272925184000, 43444678717440000,798295971432960000, 8781255685762560000,134645920515025920000] |