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A277378 as a simple table

na(n)
01
12
29
350
4361
53042
629929
7331298
84100625
955777922
10828691369
1113316140818
12230256982201
134257449540450
1483834039024649
151750225301567618
1638614608429012001
17897325298084953602
1821904718673762721225
19560258287738117292018
2014981472258320814527241

[1,2,9,50,361,3042,29929,331298,4100625,55777922,
 828691369,13316140818,230256982201,4257449540450,
 83834039024649,1750225301567618,38614608429012001,
 897325298084953602,21904718673762721225,
 560258287738117292018,14981472258320814527241]