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A363443 as a simple table

na(n)
01
14
216
3128
4864
56912
655936
7470016
84025600
935144704
10311190784
112789206016
1225254028288
13230652174336
142122466561024
1519659305379840
16183146187440128
171714933158969344
1816131631511164928
19152366562180972544

[1,4,16,128,864,6912,55936,470016,4025600,
 35144704,311190784,2789206016,25254028288,
 230652174336,2122466561024,19659305379840,
 183146187440128,1714933158969344,
 16131631511164928,152366562180972544]