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A137312 as a simple table

na(n)
01
10
22
30
4-2
54
60
74
8-12
98
100
11-12
1244
13-48
1416
150
1648
17-200
18280
19-160
2032
210
22-240
231096
24-1800
251360
26-480
2764
280
291440
30-7056
3112992
32-11760
335600
34-1344
35128
360
37-10080
3852272
39-105056
40108304
41-62720
4220608
43-3584
44256
450
4680640
47-438336
48944992
49-1076544
50718368
51-290304
5269888
53-9216
54512

[1,0,2,0,-2,4,0,4,-12,8,0,-12,44,-48,16,0,48,-200,
 280,-160,32,0,-240,1096,-1800,1360,-480,64,0,1440,
 -7056,12992,-11760,5600,-1344,128,0,-10080,52272,
 -105056,108304,-62720,20608,-3584,256,0,80640,
 -438336,944992,-1076544,718368,-290304,69888,
 -9216,512]