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A013600 as a simple table

na(n)
01
11
21
37
41
513
67
75
811
925
105
1135
1235
1335
145
1591
1647
1735
185
1917
2011
217
22103
2361
247
2513
2623
277
2825
2947
307
3173
325
3341
34133
3577
36101
37103
38193
3961
4047
41187
4271
4335
44215
4583
46121
4795
4837
4995
50145
5135
5277
5313
547
555
5625
5777
5847
59283
60235
6123
62137
63137
6447

[1,1,1,7,1,13,7,5,11,25,5,35,35,35,5,91,47,35,5,
 17,11,7,103,61,7,13,23,7,25,47,7,73,5,41,133,77,
 101,103,193,61,47,187,71,35,215,83,121,95,37,95,
 145,35,77,13,7,5,25,77,47,283,235,23,137,137,47]