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A156151 as a simple table

na(n)
12
231
3353
49559783
59559843
69559903
73779853313
827788573801
9204475054073
10204475054723
111505578024807
121505578025779
13241849345578351691
141784546064357413809
151784546064357419959
1697199410027249994623
1797199410027250046643
1897199410027250047453
1997199410027250123143

[2,31,353,9559783,9559843,9559903,3779853313,
 27788573801,204475054073,204475054723,
 1505578024807,1505578025779,241849345578351691,
 1784546064357413809,1784546064357419959,
 97199410027249994623,97199410027250046643,
 97199410027250047453,97199410027250123143]