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A013105 as a simple table

na(n)
12
25
3201
416767
52966985
6843657003
7360874106901
8214962711675327
9170540233765256817
10173705883261260614803
11220988408403985490684493
12343398031722161543448485703
13640041489411864479945549850537

[2,5,201,16767,2966985,843657003,360874106901,
 214962711675327,170540233765256817,
 173705883261260614803,220988408403985490684493,
 343398031722161543448485703,
 640041489411864479945549850537]