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A255166 as a simple table

na(n)
00
11
21
35
41
55
69
721
81
95
109
1121
129
1329
1449
1577
161
175
189
1921
209
2129
2249
2377
249
2529
2649
2785
2857
29141
30209
31261
321
335
349
3521
369
3729
3849
3977
409
4129
4249
4385
4457
45141
46209
47261
489
4929
5049
5185
5257
53141
54209
55269
5657
57141
58217
59333
60289
61597
62785
63845
641
655
669
6721
689
6929
7049
7177
729
7329
7449
7585
7657
77141
78209
79261
809
8129
8249
8385

[0,1,1,5,1,5,9,21,1,5,9,21,9,29,49,77,1,5,9,21,9,
 29,49,77,9,29,49,85,57,141,209,261,1,5,9,21,9,29,
 49,77,9,29,49,85,57,141,209,261,9,29,49,85,57,141,
 209,269,57,141,217,333,289,597,785,845,1,5,9,21,9,
 29,49,77,9,29,49,85,57,141,209,261,9,29,49,85]