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A163403 as a simple table

na(n)
11
22
32
44
54
68
78
816
916
1032
1132
1264
1364
14128
15128
16256
17256
18512
19512
201024
211024
222048
232048
244096
254096
268192
278192
2816384
2916384
3032768
3132768
3265536
3365536
34131072
35131072
36262144
37262144
38524288
39524288
401048576
411048576
422097152
432097152

[1,2,2,4,4,8,8,16,16,32,32,64,64,128,128,256,256,
 512,512,1024,1024,2048,2048,4096,4096,8192,8192,
 16384,16384,32768,32768,65536,65536,131072,131072,
 262144,262144,524288,524288,1048576,1048576,
 2097152,2097152]