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A246679 as a simple table

na(n)
11
22
34
43
58
616
75
832
964
109
11128
126
137
14256
15512
1613
1710
181024
1921
202048
214096
2211
238192
2412
2525
2616384
2718
2833
2932768
3065536
3119
3226
33131072
3437
35262144
36524288
3717
3820
391048576
4015
412097152
4242
4345
444194304
4536
4657
4750
488388608
4927
5016777216
5133554432
5229
5367108864
54134217728
5561
56268435456
5766
5843
5952
6024
6173
6214

[1,2,4,3,8,16,5,32,64,9,128,6,7,256,512,13,10,
 1024,21,2048,4096,11,8192,12,25,16384,18,33,32768,
 65536,19,26,131072,37,262144,524288,17,20,1048576,
 15,2097152,42,45,4194304,36,57,50,8388608,27,
 16777216,33554432,29,67108864,134217728,61,
 268435456,66,43,52,24,73,14]