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A199491 as a simple table

na(n)
06
139
2270
31887
413206
592439
6647070
74529487
831706406
9221944839
101553613870
1110875297087
1276127079606
13532889557239
143730226900670
1526111588304687
16182781118132806
171279467826929639
188956274788507470
1962693923519552287

[6,39,270,1887,13206,92439,647070,4529487,
 31706406,221944839,1553613870,10875297087,
 76127079606,532889557239,3730226900670,
 26111588304687,182781118132806,1279467826929639,
 8956274788507470,62693923519552287]