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A074368 as a simple table

na(n)
11
23
37
45
511
617
713
89
919
1021
1115
1225
1327
1431
1529
1623
1735
1837
1933
2039
2143
2245
2351
2449
2547
2641
2755
2853
2959
3067
3163
3273
3357
3469
3561
3665
3771
3877
3979
4083
4189
4291
4375
4481
4585
4687
4793
4897
4995
50101
51109
52113
53115
54107
55103
56119
57121
58105
59117
60111
6199
62123
63127
64129
65133
66135

[1,3,7,5,11,17,13,9,19,21,15,25,27,31,29,23,35,37,
 33,39,43,45,51,49,47,41,55,53,59,67,63,73,57,69,
 61,65,71,77,79,83,89,91,75,81,85,87,93,97,95,101,
 109,113,115,107,103,119,121,105,117,111,99,123,
 127,129,133,135]