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A137444 as a simple table

na(n)
01
14
26
34
4-4
5-16
6-24
7-16
816
964
1096
1164
12-64
13-256
14-384
15-256
16256
171024
181536
191024
20-1024
21-4096
22-6144
23-4096
244096
2516384
2624576
2716384
28-16384
29-65536
30-98304
31-65536
3265536
33262144
34393216
35262144
36-262144
37-1048576
38-1572864
39-1048576
401048576

[1,4,6,4,-4,-16,-24,-16,16,64,96,64,-64,-256,-384,
 -256,256,1024,1536,1024,-1024,-4096,-6144,-4096,
 4096,16384,24576,16384,-16384,-65536,-98304,
 -65536,65536,262144,393216,262144,-262144,
 -1048576,-1572864,-1048576,1048576]