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A124475 as a simple table

na(n)
11
29
39
412
541
63
737
821
923
103
113
121
1339
143
1539
1641
1743
1881
193
203
2147
2231
23101
2443
2539
2633
27149
2843
2923
309
311
32131
33103
3441
357
36123
3721
38147
399
40417
4129
42277
4311
44117
45337
4651
4771
4893
4921
50187
5181
5269
53111
5459
55217
56183
57179
58403
59249
6033
6129
62153
63231
64141
657
66117
6793
68329
69223
70393

[1,9,9,12,41,3,37,21,23,3,3,1,39,3,39,41,43,81,3,
 3,47,31,101,43,39,33,149,43,23,9,1,131,103,41,7,
 123,21,147,9,417,29,277,11,117,337,51,71,93,21,
 187,81,69,111,59,217,183,179,403,249,33,29,153,
 231,141,7,117,93,329,223,393]