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A169256 as a simple table

na(n)
01
13
26
312
424
548
696
7192
8384
9768
101536
113072
126144
1312288
1424576
1549152
1698304
17196608
18393216
19786432
201572864
213145728
226291456
2312582912
2425165824
2550331648
26100663296
27201326592
28402653184
29805306365
301610612724
313221225439

[1,3,6,12,24,48,96,192,384,768,1536,3072,6144,
 12288,24576,49152,98304,196608,393216,786432,
 1572864,3145728,6291456,12582912,25165824,
 50331648,100663296,201326592,402653184,805306365,
 1610612724,3221225439]