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A028054 as a simple table

na(n)
01
122
2309
33542
436197
5344190
63119173
727339334
8233997093
91968524558
1016351808837
11134557949526
121099534023589
138937744119326
1472366036152901
15584189060834918
164705458521506085
1737837251535931694

[1,22,309,3542,36197,344190,3119173,27339334,
 233997093,1968524558,16351808837,134557949526,
 1099534023589,8937744119326,72366036152901,
 584189060834918,4705458521506085,
 37837251535931694]