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A230770 as a simple table

na(n)
12
24
312
415
5110
6121
7125
8511
9908
102047
1131269
1258252
13180544
142275680
153776877
164164717
174835820
188386433
198388607
2032284479
2160333777
2282628532
23122016110
24174438012
25238609292
26513528686
27515718093
28919749786
291043394771
303851465145
314264386607

[2,4,12,15,110,121,125,511,908,2047,31269,58252,
 180544,2275680,3776877,4164717,4835820,8386433,
 8388607,32284479,60333777,82628532,122016110,
 174438012,238609292,513528686,515718093,919749786,
 1043394771,3851465145,4264386607]