A286198-组织环境信息系统

A286198型作为一个简单的表

n个	a（n）
0	1
1	2
2	0
三	12
4	1
5	56
6	0
7	240
8	7
9	992
10	1
11	4032
12	24
13	16256
14	三
15	65288
16	97
17	261632
18	8
19	1047584
20	384
21	4192256
22	48
23	16773248
24	1536
25	67100696
26	192
27	268419584
28	6168
29	1073709120
30	768
31	4294903832
32	24640
33	17179738368
34	3096
35	68719222848
36	98560
37	274877383704
38	12288

[1,2,0,12,1,56,0,240,7,992,1,4032,24,16256,3,65288,97,261632,8,1047584,384,4192256,48,16773248,1536,67100696,192,268419584,6168,1073709120,768,4294903832,24640,17179738368,3096,68719222848,98560,274877383704,12288]