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A170898 as a simple table

na(n)
01
11
23
31
43
55
67
71
83
95
109
119
127
1313
1415
151
163
175
189
199
209
2117
2225
2317
247
2513
2623
2727
2819
2931
3031
311
323
335
349
359
369
3717
3825
3917
409
4117
4229
4337
4433
4541
4657
4733
487
4913
5023
5127
5227
5343
5467
5559
5627
5731
5855
5969
6049
6169
6263
631
643
655
669
679
689
6917
7025
7117
729
7317
7429
7537
7633
7741

[1,1,3,1,3,5,7,1,3,5,9,9,7,13,15,1,3,5,9,9,9,17,
 25,17,7,13,23,27,19,31,31,1,3,5,9,9,9,17,25,17,9,
 17,29,37,33,41,57,33,7,13,23,27,27,43,67,59,27,31,
 55,69,49,69,63,1,3,5,9,9,9,17,25,17,9,17,29,37,33,
 41]