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A002611 as a simple table

na(n)
10
21
34
4-4
5-32
6-16
756
880
9192
1098
11-740
12-704
1396
14-224
152440
163520
17-2624
18-351
19-780
20-10632
212688
222960
23-9496
2418176
2514208
26-3934
2712552
28-9856
29-24608
30-9760
31-2720
32-25344
33-35520
3431106
3534160
3662844
3784576
383120
39-21880
40-82272
4127520
42-96768
43-237316
44130240
45-92832
4637984
47305296
48-183296
4937632
50208803

[0,1,4,-4,-32,-16,56,80,192,98,-740,-704,96,-224,
 2440,3520,-2624,-351,-780,-10632,2688,2960,-9496,
 18176,14208,-3934,12552,-9856,-24608,-9760,-2720,
 -25344,-35520,31106,34160,62844,84576,3120,-21880,
 -82272,27520,-96768,-237316,130240,-92832,37984,
 305296,-183296,37632,208803]