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A226852 as a simple table

na(n)
13
29
39
423
571
623
757
8417
9417
1057
11145
122291
134722
142291
15145
16373
1712961
1849481
1949481
2012961
21373
22957
2375111
24541932
25989731
26541932
2775111
28957
292449
30435829
316076168
3220749217
3320749217
346076168
35435829
362449
376267
382516107
3967929575

[3,9,9,23,71,23,57,417,417,57,145,2291,4722,2291,
 145,373,12961,49481,49481,12961,373,957,75111,
 541932,989731,541932,75111,957,2449,435829,
 6076168,20749217,20749217,6076168,435829,2449,
 6267,2516107,67929575]