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A121825 as a simple table

na(n)
13
27
319
467
5103
6199
7487
8787
91447
102503
112707
123847
134099
144903
155479
165779
178467
188839
1911239
2012547
2114887
2216903
2317959
2419603
2521319
2623719
2724967
2825603
2929587
3031687
3147527
3252903
3358567
3459539
3561507
3665539
3775079
3881799
3988807
4092419

[3,7,19,67,103,199,487,787,1447,2503,2707,3847,
 4099,4903,5479,5779,8467,8839,11239,12547,14887,
 16903,17959,19603,21319,23719,24967,25603,29587,
 31687,47527,52903,58567,59539,61507,65539,75079,
 81799,88807,92419]