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A065938 as a simple table

na(n)
11
26
314
47
5120
6248
716160
81019
9127
1032640
1165408
1216373
138386032
144194056
154194239
1632767
172147450880
184294934528
194611672824287851743
20268435343
218796091842564
221125899889968159
2370368744112268
2470368744161279

[1,6,14,7,120,248,16160,1019,127,32640,65408,
 16373,8386032,4194056,4194239,32767,2147450880,
 4294934528,4611672824287851743,268435343,
 8796091842564,1125899889968159,70368744112268,
 70368744161279]