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A072944 as a simple table

na(n)
12
23
34
46
510
616
724
840
964
1096
11160
12256
13384
14640
151024
161536
172560
184096
196144
2010240
2116384
2224576
2340960
2465536
2598304
26163840
27262144
28393216
29655360
301048576
311572864
322621440
334194304
346291456
3510485760
3616777216
3725165824

[2,3,4,6,10,16,24,40,64,96,160,256,384,640,1024,
 1536,2560,4096,6144,10240,16384,24576,40960,65536,
 98304,163840,262144,393216,655360,1048576,1572864,
 2621440,4194304,6291456,10485760,16777216,
 25165824]