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A068342 as a simple table

na(n)
11
21
32
43
57
68
742
843
9304
10914
1113717
1213718
131948004
141948005
15165580467
163808350755
171157738629649
181157738629650
1914800530641450464
2014800530641450465
21703750431470328179479
2290080055228202006973396
232471346315185722061315132977

[1,1,2,3,7,8,42,43,304,914,13717,13718,1948004,
 1948005,165580467,3808350755,1157738629649,
 1157738629650,14800530641450464,14800530641450465,
 703750431470328179479,90080055228202006973396,
 2471346315185722061315132977]