A038110-OEIS公司

A038110型作为一个简单的表

n个	a（n）
1	1
2	1
三	1
4	4
5	8
6	16
7	192
8	3072
9	55296
10	110592
11	442368
12	13271040
13	477757440
14	19110297600
15	802632499200
16	1605264998400
17	6421059993600
18	12842119987200
19	770527199232000
20	50854795149312000
21	3559835660451840000

[1,1,1,4,8,16,192,3072,55296,110592,442368,13271040,477757440,19110297600,802632499200,1605264998400,6421059993600,12842119987200,770527199232000,50854795149312000,3559835660451840000]