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A185342 as a simple table

na(n)
02
14
2-4
36
4-12
58
68
7-24
832
9-16
1010
11-40
1280
13-80
1432
1512
16-60
17160
18-240
19192
20-64
2114
22-84
23280
24-560
25672
26-448
27128
2816
29-112
30448
31-1120
321792
33-1792
341024
35-256
3618
37-144
38672
39-2016
404032
41-5376
424608
43-2304
44512
4520
46-180
47960
48-3360
498064

[2,4,-4,6,-12,8,8,-24,32,-16,10,-40,80,-80,32,12,
 -60,160,-240,192,-64,14,-84,280,-560,672,-448,128,
 16,-112,448,-1120,1792,-1792,1024,-256,18,-144,
 672,-2016,4032,-5376,4608,-2304,512,20,-180,960,
 -3360,8064]