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A054043 as a simple table

na(n)
11
22
34
48
516
632
763
864
9128
10256
11455
12512
13729
14874
15948
161024
171259
181393
191437
201660
211678
221831
232002
242048
254096
268192
2714343
2816384
2922553
3026666
3128724
3232768
3338955
3443057
3545085
3651260
3753262
3857383
3963506
4065536
4171873

[1,2,4,8,16,32,63,64,128,256,455,512,729,874,948,
 1024,1259,1393,1437,1660,1678,1831,2002,2048,4096,
 8192,14343,16384,22553,26666,28724,32768,38955,
 43057,45085,51260,53262,57383,63506,65536,71873]