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A020010 as a simple table

na(n)
01
10
21
32
46
525
6136
7879
86554
955412
10523897
115477110
1262737807
13781370863
1410512989797
15151960488890
162348480282846
1738643175563195
18674499064375772
1912447573642571061
20242161887228200640
214953311329667740359

[1,0,1,2,6,25,136,879,6554,55412,523897,5477110,
 62737807,781370863,10512989797,151960488890,
 2348480282846,38643175563195,674499064375772,
 12447573642571061,242161887228200640,
 4953311329667740359]