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A206400 as a simple table

na(n)
10
21
31
43
53
61
73
83
91
109
113
1213
131
149
157
169
175
183
1915
205
213
223
231
243
253
2611
273
285
293
309
315
323
333
3419
351
363
3713
385
395
403
419
425
433
443
455
469
473
4815
495
507
5111
5213
539
5433
551
569
573
585
5913
609
615
623
633
6419
651
663
673
6815
695
7039
717
7211
7313
745
757
769
7739
781
797
801
817

[0,1,1,3,3,1,3,3,1,9,3,13,1,9,7,9,5,3,15,5,3,3,1,
 3,3,11,3,5,3,9,5,3,3,19,1,3,13,5,5,3,9,5,3,3,5,9,
 3,15,5,7,11,13,9,33,1,9,3,5,13,9,5,3,3,19,1,3,3,
 15,5,39,7,11,13,5,7,9,39,1,7,1,7]