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A069548 as a simple table

na(n)
12
247
3107
4191
5281
6431
7587
8593
9661
10971
111097
121213
131217
142357
152549
162699
175807
185869
196469
206911
217039
227873
238423
248747
2510799
2611261
2711821
2811981
2914867
3015551
3116411
3216427
3318223
3419937
3522877
3622961
3725153
3828573
3929531
4030467

[2,47,107,191,281,431,587,593,661,971,1097,1213,
 1217,2357,2549,2699,5807,5869,6469,6911,7039,7873,
 8423,8747,10799,11261,11821,11981,14867,15551,
 16411,16427,18223,19937,22877,22961,25153,28573,
 29531,30467]