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A260428 as a simple table

na(n)
169
277
381
4121
5169
6205
7209
8261
9265
10275
11289
12295
13305
14321
15323
16327
17329
18339
19377
20405
21407
22437
23453
24473
25475
26481
27493
28517
29533
30551
31553
32559
33565
34575
35581
36583
37595
38625
39649
40667
41671
42689
43703
44707
45737
46747
47749
48755
49763
50767
51779
52781
53785
54805
55815
56833
57835
58851
59855
60861
61869
62893
63905

[69,77,81,121,169,205,209,261,265,275,289,295,305,
 321,323,327,329,339,377,405,407,437,453,473,475,
 481,493,517,533,551,553,559,565,575,581,583,595,
 625,649,667,671,689,703,707,737,747,749,755,763,
 767,779,781,785,805,815,833,835,851,855,861,869,
 893,905]