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A166190 as a simple table

na(n)
01
121
2207
31298
46052
522824
673383
7208269
8534687
91264026
102788834
115802288
1211477240
1321726484
1439571482
1569652946
16118924069
17197575191
18320248137
19507608530
20788356140
211201765708
221800865001
232656371783
243861528515

[1,21,207,1298,6052,22824,73383,208269,534687,
 1264026,2788834,5802288,11477240,21726484,
 39571482,69652946,118924069,197575191,320248137,
 507608530,788356140,1201765708,1800865001,
 2656371783,3861528515]