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A027446 as a simple table

na(n)
11
23
31
411
55
62
725
813
97
103
11137
1277
1347
1427
1512
16147
1787
1857
1937
2022
2110
221089
23669
24459
25319
26214
27130
2860
292283
301443
311023
32743
33533
34365
35225
36105
377129
384609
393349
402509
411879
421375
43955
44595
45280
467381
474861
483601
492761
502131
511627
521207
53847
54532
55252

[1,3,1,11,5,2,25,13,7,3,137,77,47,27,12,147,87,57,
 37,22,10,1089,669,459,319,214,130,60,2283,1443,
 1023,743,533,365,225,105,7129,4609,3349,2509,1879,
 1375,955,595,280,7381,4861,3601,2761,2131,1627,
 1207,847,532,252]