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A261271 as a simple table

na(n)
11
22
33
45
57
611
713
817
919
1023
1125
1229
1331
1437
1541
1643
1747
1849
1953
2055
2159
2261
2367
2471
2573
2677
2779
2883
2985
3089
3191
3297
33101
34103
35107
36109
37113
38115
39119
40121
41127
42131
43133
44137
45139
46143
47145
48149
49151
50157
51161
52163
53167
54169
55173
56175

[1,2,3,5,7,11,13,17,19,23,25,29,31,37,41,43,47,49,
 53,55,59,61,67,71,73,77,79,83,85,89,91,97,101,103,
 107,109,113,115,119,121,127,131,133,137,139,143,
 145,149,151,157,161,163,167,169,173,175]