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A273439 as a simple table

na(n)
81
9108
107710
11469590
1226750823
131488656598
1482839614429
154672159568505
16269240651261153
1715931093968844912
18970803214965494976
1961032579212845013280
203962346372673358180536
21265758042459395190801852
2218415788640437877637900864
231318210727391112435230475378

[1,108,7710,469590,26750823,1488656598,
 82839614429,4672159568505,269240651261153,
 15931093968844912,970803214965494976,
 61032579212845013280,3962346372673358180536,
 265758042459395190801852,
 18415788640437877637900864,
 1318210727391112435230475378]