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A078685 as a simple table

na(n)
10
21
31
41
53
63
71
83
97
103
111
125
139
1411
1515
1611
175
183
193
207
219
2215
2319
2425
2531
2627
2725
2821
2919
3015
311
323
339
3411
3521
3623
3729
3835
3939
4045
4151
4253
4363
4463
4559
4657
4745
4833
4929
5027
5123
5217
5315
545
551
567
5713
5815
5921
6025
6127
6237
6351
6455
6557
6661
6775
6881
6991
7093
7197
72103
73111
74117
75123
76127

[0,1,1,1,3,3,1,3,7,3,1,5,9,11,15,11,5,3,3,7,9,15,
 19,25,31,27,25,21,19,15,1,3,9,11,21,23,29,35,39,
 45,51,53,63,63,59,57,45,33,29,27,23,17,15,5,1,7,
 13,15,21,25,27,37,51,55,57,61,75,81,91,93,97,103,
 111,117,123,127]