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A074869 as a simple table

na(n)
1707
27843
3143591
4274211
5598787
6737807
7861749
8928421
91515521
101682203
111936099
122223143
132709473
142908373
152985641
163669919
173689279
183825419
193848851
204154297
214429159
225321743
235654623
245678131
256548899
268916427
2711403743
2811474267
2912191803
3013340869

[707,7843,143591,274211,598787,737807,861749,
 928421,1515521,1682203,1936099,2223143,2709473,
 2908373,2985641,3669919,3689279,3825419,3848851,
 4154297,4429159,5321743,5654623,5678131,6548899,
 8916427,11403743,11474267,12191803,13340869]