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A324867 as a simple table

na(n)
10
21
33
42
57
64
715
86
90
1013
1131
1210
1363
1416
152
166
17127
1812
19255
2018
217
2246
23511
2422
2528
2682
274
2846
291023
3030
312047
3230
3354
34174
352
3622
374095
38256
3912
4054
418191
4236
4316383
4466
4524
46798
4732767
4846
4960
5031
51248
52130
5365535
5428
5519
5670
5712
581300
59131071
6042
61262143
622734
6348
6422
65126
6694
67524287
68302
69774
7040
711048575
7238
732097151
744354
7510

[0,1,3,2,7,4,15,6,0,13,31,10,63,16,2,6,127,12,255,
 18,7,46,511,22,28,82,4,46,1023,30,2047,30,54,174,
 2,22,4095,256,12,54,8191,36,16383,66,24,798,32767,
 46,60,31,248,130,65535,28,19,70,12,1300,131071,42,
 262143,2734,48,22,126,94,524287,302,774,40,
 1048575,38,2097151,4354,10]