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A173862 as a simple table

na(n)
11
21
31
42
52
62
74
84
94
108
118
128
1316
1416
1516
1632
1732
1832
1964
2064
2164
22128
23128
24128
25256
26256
27256
28512
29512
30512
311024
321024
331024
342048
352048
362048
374096
384096
394096
408192
418192
428192
4316384
4416384
4516384
4632768
4732768
4832768
4965536
5065536
5165536
52131072
53131072

[1,1,1,2,2,2,4,4,4,8,8,8,16,16,16,32,32,32,64,64,
 64,128,128,128,256,256,256,512,512,512,1024,1024,
 1024,2048,2048,2048,4096,4096,4096,8192,8192,8192,
 16384,16384,16384,32768,32768,32768,65536,65536,
 65536,131072,131072]