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A133031 as a simple table

na(n)
11
22
33
46
51
62
74
87
914
1028
111
122
134
148
1516
1631
1762
18124
19248
20496
211
222
234
248
2516
2632
2764
28127
29254
30508
311016
322032
334064
348128
351
362
374
388
3916
4032
4164
42128
43256
44512
451024
462048
474096
488191
4916382
5032764
5165528
52131056
53262112
54524224
551048448
562096896

[1,2,3,6,1,2,4,7,14,28,1,2,4,8,16,31,62,124,248,
 496,1,2,4,8,16,32,64,127,254,508,1016,2032,4064,
 8128,1,2,4,8,16,32,64,128,256,512,1024,2048,4096,
 8191,16382,32764,65528,131056,262112,524224,
 1048448,2096896]