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A135451美元作为一个简单的表

n个a(n)
01
11
2-1
12
4-16
51
62160
7-3312
8381
9-1
106048000
11-10137600
121603680
13-10496
141
15266716800000
16-476703360000
1792708406000
18-1022881200
19307505
20-1
21186313420339200000
22-349935855575040000
2378981336366912000
24-1242627237734400
25750409713900
26-9316560
271

[1,1,-1,12,-16,1,2160,-3312,381,-1,6048000,-10137600,1603680,-10496,1,266716800000,-476703360000,92708406000,-1022881200,307505,-1,186313420339200000,-349935855575040000,78981336366912000,-1242627237734400,750409713900,-9316560,1]