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A272919 as a simple table

na(n)
11
22
33
44
57
68
710
815
916
1031
1132
1236
1342
1463
1564
16127
17128
18136
19170
20255
21256
22292
23511
24512
25528
26682
271023
281024
292047
302048
312080
322184
332340
342730
354095
364096
378191
388192
398256
4010922
4116383
4216384
4316912
4418724
4532767
4632768
4732896
4834952
4943690
5065535
5165536
52131071

[1,2,3,4,7,8,10,15,16,31,32,36,42,63,64,127,128,
 136,170,255,256,292,511,512,528,682,1023,1024,
 2047,2048,2080,2184,2340,2730,4095,4096,8191,8192,
 8256,10922,16383,16384,16912,18724,32767,32768,
 32896,34952,43690,65535,65536,131071]