A056221-OEIS公司

A056221美元作为一个简单的表

n个	a（n）
1	-1
2	4
三	-6
4	30
5	-18
6	42
7	-30
8	-22
9	128
10	-112
11	98
12	90
13	-78
14	-70
15	36
16	248
17	-232
18	158
19	150
20	-280
21	182
22	-142
23	-130
24	420
25	210
26	-198
27	222
28	-210
29	-1074
30	1326
31	-238
32	560
33	-1092
34	1212
35	-592
36	36
37	350
38	-310
39	36
40	728
41	-1428
42	1548
43	-378
44	402
45	-1966
46	144
47	1832
48	462
49	-450
50	-442

[-1,4,-6,30,-18,42,-30,-22,128,-112,98,90,-78,-70,36,248,-232,158,150,-280,182,-142,-130,420,210,-198,222,-210,-1074,1326,-238,560,-1092,1212,-592,36,350,-310,36,728,-1428,1548,-378,402,-1966,144,1832,462,-450,-442]