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A202736 as a simple table

na(n)
12
22
38
410
532
644
7128
8186
9512
10772
112048
123172
138192
1412952
1532768
1652666
17131072
18213524
19524288
20863820
212097152
223488872
238388608
2414073060
2533554432
2656708264
27134217728
28228318856
29536870912
30918624304
312147483648
323693886906

[2,2,8,10,32,44,128,186,512,772,2048,3172,8192,
 12952,32768,52666,131072,213524,524288,863820,
 2097152,3488872,8388608,14073060,33554432,
 56708264,134217728,228318856,536870912,918624304,
 2147483648,3693886906]