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A053147 as a simple table

na(n)
12
24
38
432
532
6256
732
8512
9256
1065536
1164
12512
134096
14256
15512
16128
1716
182048
1964
2064
21512
228192
23256
248192
252048
26131072
27128
288192
291048576
3016
312048
322048
3332768
348192
35512
36524288
378192
3864
3916
408192
4116
4216
43256
4416

[2,4,8,32,32,256,32,512,256,65536,64,512,4096,256,
 512,128,16,2048,64,64,512,8192,256,8192,2048,
 131072,128,8192,1048576,16,2048,2048,32768,8192,
 512,524288,8192,64,16,8192,16,16,256,16]