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A109254 as a simple table

na(n)
15
23
367
453
511
661
713
8164683
92417
10163
11739
121871
13199
141987261
152221
161301
1714894543
1871
191289
2031
21136261
2217
23339121
24137
25443
26766606297
2719
282017
292279779036969771
305329741
3143
32235448977
3323
349552313
3547
36116462754638606501
37337
3816993
39101
40158305897173001

[5,3,67,53,11,61,13,164683,2417,163,739,1871,199,
 1987261,2221,1301,14894543,71,1289,31,136261,17,
 339121,137,443,766606297,19,2017,2279779036969771,
 5329741,43,235448977,23,9552313,47,
 116462754638606501,337,16993,101,158305897173001]