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A154345 as a simple table

na(n)
01
14
2-2
312
4-15
53
632
7-76
836
90
1080
11-325
12275
130
14-30
15192
16-1266
171710
180
19-720
20180
21448
22-4655
239457
240
25-10290
265670
27-630
281024
29-16472
3048552
310
32-114240
33104160
34-25200
350

[1,4,-2,12,-15,3,32,-76,36,0,80,-325,275,0,-30,
 192,-1266,1710,0,-720,180,448,-4655,9457,0,-10290,
 5670,-630,1024,-16472,48552,0,-114240,104160,
 -25200,0]