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A080420 as a simple table

na(n)
01
17
236
3162
4675
52673
610206
737908
8137781
9492075
101732104
116022998
1220726199
1370681653
14239148450
15803538792
162683245609
178910671247
1829443957164
1996855122250
20317297380491
211035574967097
223368233731366
2310920608743932
2435303692060125
25113819103201843

[1,7,36,162,675,2673,10206,37908,137781,492075,
 1732104,6022998,20726199,70681653,239148450,
 803538792,2683245609,8910671247,29443957164,
 96855122250,317297380491,1035574967097,
 3368233731366,10920608743932,35303692060125,
 113819103201843]