A008296-OEIS公司

A008296号作为一个简单的表

n个	a（n）
1	1
2	1
三	1
4	-1
5	三
6	1
7	2
8	-1
9	6
10	1
11	-6
12	0
13	5
14	10
15	1
16	24
17	4
18	-15
19	25
20	15
21	1
22	-120
23	-28
24	49
25	-35
26	70
27	21
28	1
29	720
30	188
31	-196
32	49
33	0
34	154
35	28
36	1
37	-5040
38	-1368
39	944
40	0
41	-231
42	252
43	294
44	36
45	1
46	40320
47	11016
48	-5340
49	-820
50	1365
51	-987
52	1050
53	510
54	45
55	1
56	-362880
57	-98208
58	34716
59	9020
60	-7645
61	3003
62	-1617
63	2970
64	825
65	55
66	1
67	3628800

[1,1,1,-1,3,1,2,-1,6,1,-6,0,5,10,1,24,4,-15,25,15,1,-120,-28,49,-35,70,21,1,720,188,-196,49,0,154,28,1,-5040,-1368,944,0,-231,252,294,36,1,40320,11016,-5340,-820,1365,-987,1050,510,45,1,-362880,-98208,34716,9020,-7645,3003,-1617,2970,825,55,1,3628800]