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A204100 as a simple table

na(n)
10
21
31
43
53
65
73
89
91
109
113
129
133
141
159
163
179
183
199
2011
2123
223
239
2419
2515
269
275
287
295
3049
313
321
339
347
3545
363
375
383
399
4019
4125
4215
433
443
455
4635
477
489
491
5039
513
5215
539
547
5521
5627
571
5817
595
6015
619
6217
631
647
655
663
6731
689
6913
709
7113
7255
7313
7421
759
767
775
7819

[0,1,1,3,3,5,3,9,1,9,3,9,3,1,9,3,9,3,9,11,23,3,9,
 19,15,9,5,7,5,49,3,1,9,7,45,3,5,3,9,19,25,15,3,3,
 5,35,7,9,1,39,3,15,9,7,21,27,1,17,5,15,9,17,1,7,5,
 3,31,9,13,9,13,55,13,21,9,7,5,19]