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A269378 as a simple table

na(n)
10
21
32
43
56
65
74
87
98
1013
1110
1211
1316
149
1532
1615
1714
1817
1912
2027
2164
2221
2326
2423
25128
2633
2724
2819
2922
3065
31256
3231
33512
3429
3518
3635
371024
3825
3920
4055
4130
42129
432048
4443
4548
4653
4734
4847
494096
50257
518192
5267
5354
5449
5596
5639
5740
5845
5942
60131
6128
62513
6316384
6463
6546
661025
6732768
6859
6965536
7037
7166
7271
73131072
742049
75262144
7651
7738
7841

[0,1,2,3,6,5,4,7,8,13,10,11,16,9,32,15,14,17,12,
 27,64,21,26,23,128,33,24,19,22,65,256,31,512,29,
 18,35,1024,25,20,55,30,129,2048,43,48,53,34,47,
 4096,257,8192,67,54,49,96,39,40,45,42,131,28,513,
 16384,63,46,1025,32768,59,65536,37,66,71,131072,
 2049,262144,51,38,41]