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A273052 as a simple table

na(n)
12
234
3542
48638
5137666
62194018
734966622
8557271934
98881384322
10141544877218
112255836651166
1235951841541438
13572973628011842
149131626206648034
15145533045678356702
162319397104647059198
1736964820628674590466
18589117732954146388258
199388918906637667621662

[2,34,542,8638,137666,2194018,34966622,557271934,
 8881384322,141544877218,2255836651166,
 35951841541438,572973628011842,9131626206648034,
 145533045678356702,2319397104647059198,
 36964820628674590466,589117732954146388258,
 9388918906637667621662]