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A070050 as a simple table

na(n)
14
212
333
487
5223
6559
71375
83327
97935
1018687
1143519
12100351
13229375
14520191
151171455
162621439
175832703
1812910591
1928442623
2062390271
21136314879
22296747007
23643825663
241392508927
253003121663
266459228159
2713857980415
2829662117887
2963350767615

[4,12,33,87,223,559,1375,3327,7935,18687,43519,
 100351,229375,520191,1171455,2621439,5832703,
 12910591,28442623,62390271,136314879,296747007,
 643825663,1392508927,3003121663,6459228159,
 13857980415,29662117887,63350767615]