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A131057 as a simple table

na(n)
30
42
51
62
77
81
92
101
115
123
131
1419
1511
161
1719
1819
1911
201
2119
2223
231
241
2547
261
271
2829
293
3029
312
3259
3373
341
3543
361
3713
3817
3941
401
412
425
433
4453
4579
467
471
4853
4923
501
5113
5213
5361
547
5559
5661
577
5831
591
6089
61107
62103
6367
6447
65103
6619
6743
681
6971
7011
717
7283
7379
7467
7571

[0,2,1,2,7,1,2,1,5,3,1,19,11,1,19,19,11,1,19,23,1,
 1,47,1,1,29,3,29,2,59,73,1,43,1,13,17,41,1,2,5,3,
 53,79,7,1,53,23,1,13,13,61,7,59,61,7,31,1,89,107,
 103,67,47,103,19,43,1,71,11,7,83,79,67,71]