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A020525 as a simple table

na(n)
01
13
2847
345375
41770751
561871103
62063618047
767377381375
82177548746751
970025148104703
102246302260789247
1171969633128677375
122304435634414026751
1373764458297036898303
142360822953465975144447
1575552099118396657893375

[1,3,847,45375,1770751,61871103,2063618047,
 67377381375,2177548746751,70025148104703,
 2246302260789247,71969633128677375,
 2304435634414026751,73764458297036898303,
 2360822953465975144447,75552099118396657893375]