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A053125 as a simple table

na(n)
01
14
2-2
316
4-16
53
664
7-96
840
9-4
10256
11-512
12336
13-80
145
151024
16-2560
172304
18-896
19140
20-6
214096
22-12288
2314080
24-7680
252016
26-224
277
2816384
29-57344
3079872
31-56320
3221120
33-4032
34336
35-8
3665536
37-262144
38430080
39-372736
40183040
41-50688
427392
43-480
449
45262144
46-1179648
472228224
48-2293760
491397760

[1,4,-2,16,-16,3,64,-96,40,-4,256,-512,336,-80,5,
 1024,-2560,2304,-896,140,-6,4096,-12288,14080,
 -7680,2016,-224,7,16384,-57344,79872,-56320,21120,
 -4032,336,-8,65536,-262144,430080,-372736,183040,
 -50688,7392,-480,9,262144,-1179648,2228224,
 -2293760,1397760]