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A275056 as a simple table

na(n)
11
21
31
43
55
61
73
85
917
1011
1113
125
134
1413
155
1613
1719
1817
195
207
214
2213
235
249
2511
267
279
285
297
3045
3159
32149
33233
341081
351501
361361
371501
381291
39477
401291
411711
421627
432047
441837
452257
46729
472257
482047
492467
502257
51799
52659
53687
541921
55687
561921
572341
582201

[1,1,1,3,5,1,3,5,17,11,13,5,4,13,5,13,19,17,5,7,4,
 13,5,9,11,7,9,5,7,45,59,149,233,1081,1501,1361,
 1501,1291,477,1291,1711,1627,2047,1837,2257,729,
 2257,2047,2467,2257,799,659,687,1921,687,1921,
 2341,2201]