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A129834 as a simple table

na(n)
10
20
31
43
59
623
7171
8475
91307
1010245
1128951
12233099
13664496
145442024
153109434694
16218785948496

[0,0,1,3,9,23,171,475,1307,10245,28951,233099,
 664496,5442024,3109434694,218785948496]