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A032421 as a simple table

na(n)
153
277
3293
4333
5393
6809
7825
820973
985349
10270285
11459093
12699189
13859769
141650689

[53,77,293,333,393,809,825,20973,85349,270285,
 459093,699189,859769,1650689]