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A052396 as a simple table

na(n)
12
24
38
416
532
663
764
8128
9256
10512
111024
122048
134096
148192
1516384
1632768
1734587
1865536
19131072
20262144
21524288
221048576
232097152
244194304
258388608
2616777216
2733554432
2867108864
29134217728
30170271801
31268435456
32536870912
331073741824
342147483648
354294967296

[2,4,8,16,32,63,64,128,256,512,1024,2048,4096,
 8192,16384,32768,34587,65536,131072,262144,524288,
 1048576,2097152,4194304,8388608,16777216,33554432,
 67108864,134217728,170271801,268435456,536870912,
 1073741824,2147483648,4294967296]