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A022221 as a simple table

na(n)
31
4259
557535
612485095
72698853335
8583026951031
9125936508182839
1027202382491194295
115875718100153221815
121269155234987097152695
13274137535269957102205111
1459213707780769522731688119
1512790160886494733304250601655

[1,259,57535,12485095,2698853335,583026951031,
 125936508182839,27202382491194295,
 5875718100153221815,1269155234987097152695,
 274137535269957102205111,
 59213707780769522731688119,
 12790160886494733304250601655]