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A060870 as a simple table

na(n)
14
2144
33844
497344
52439844
661027344
71525839844
838146777344
9953673339844
1023841853027344
11596046423339844
1214901161071777344
13372529029235839844
149313225743103027344
15232830643638610839844
165820766091270446777344

[4,144,3844,97344,2439844,61027344,1525839844,
 38146777344,953673339844,23841853027344,
 596046423339844,14901161071777344,
 372529029235839844,9313225743103027344,
 232830643638610839844,5820766091270446777344]