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A018054 as a simple table

na(n)
01
121
2310
33990
448031
5557571
66338620
771164380
8792891661
98792412321
1097210822930
111072779241170
1211824793506891
13130242283148271
141433852001421240
1515780680237514360
16173645640208869721
171910509145600189421
1821018450325107861550
19231222901641889183950

[1,21,310,3990,48031,557571,6338620,71164380,
 792891661,8792412321,97210822930,1072779241170,
 11824793506891,130242283148271,1433852001421240,
 15780680237514360,173645640208869721,
 1910509145600189421,21018450325107861550,
 231222901641889183950]