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A285267 as a simple table

na(n)
41
54
61
716
85
91
1064
1123
126
131
14256
15107
1630
177
181
191024
20497
21154
2237
238
241
254096
262309
27788
28203
2944
309
311
3216384
3310727
344034
351111
36252
3751
3810
391
4065536
4149835
4220650
436083
441446
45301
4658
4711
481
49262144
50231521
51105708
5233305
538300
541787
55350
5665
5712
581

[1,4,1,16,5,1,64,23,6,1,256,107,30,7,1,1024,497,
 154,37,8,1,4096,2309,788,203,44,9,1,16384,10727,
 4034,1111,252,51,10,1,65536,49835,20650,6083,1446,
 301,58,11,1,262144,231521,105708,33305,8300,1787,
 350,65,12,1]