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A369645 as a simple table

na(n)
11
22
38
432
5256
62560
730720
832768
94194304
1020971520
1158720256
12234881024
13536870912
141342177280

[1,2,8,32,256,2560,30720,32768,4194304,20971520,
 58720256,234881024,536870912,1342177280]