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A180956 as a simple table

na(n)
01
12
21
38
42
51
616
78
82
91
10128
1116
128
132
141
15256
16128
1716
188
192
201
211024
22256
23128
2416
258
262
271
282048
291024
30256
31128
3216
338
342
351
3632768
372048
381024
39256
40128
4116
428
432
441
4565536
4632768
472048
481024
49256
50128
5116
528
532
541
55262144
5665536
5732768
582048
591024
60256
61128
6216
638
642
651

[1,2,1,8,2,1,16,8,2,1,128,16,8,2,1,256,128,16,8,2,
 1,1024,256,128,16,8,2,1,2048,1024,256,128,16,8,2,
 1,32768,2048,1024,256,128,16,8,2,1,65536,32768,
 2048,1024,256,128,16,8,2,1,262144,65536,32768,
 2048,1024,256,128,16,8,2,1]