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A283848 as a simple table

na(n)
38
423
532
686
7128
8339
9512
101332
112048
125298
138192
1421066
1532768
1683987
17131072
18334966
19524288
201336988
212097152
225338206
238388608
2421321234
2533554432
2685176636
27134217728
28340338398
29536870912
301360073016
312147483648
325435820051
338589934592
3421727481616
3534359738368
3686853790498
37137438953472

[8,23,32,86,128,339,512,1332,2048,5298,8192,21066,
 32768,83987,131072,334966,524288,1336988,2097152,
 5338206,8388608,21321234,33554432,85176636,
 134217728,340338398,536870912,1360073016,
 2147483648,5435820051,8589934592,21727481616,
 34359738368,86853790498,137438953472]