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A321336 as a simple table

na(n)
01
1-2
2-3
38
4-6
54
626
7-56
8-7
970
10-51
1132
12120
13-272
14-200
15672
16-182
17-308
181026
19-1744
20-660
213064
22-916
23-1232
242466
25-3700
26-3990
2711680
28-1416
29-8848
3013752
31-18656
32-8503
3335662
34-14331
35-7000
3627122
37-47244
38-29870
39106984
40-25895
41-55194
42140173
43-225152

[1,-2,-3,8,-6,4,26,-56,-7,70,-51,32,120,-272,-200,
 672,-182,-308,1026,-1744,-660,3064,-916,-1232,
 2466,-3700,-3990,11680,-1416,-8848,13752,-18656,
 -8503,35662,-14331,-7000,27122,-47244,-29870,
 106984,-25895,-55194,140173,-225152]