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A248143 as a simple table

na(n)
11
21
31
461
513
67
71
825
9109
1041
1160
121
135
1424
1518
166
173
187
1938
2012
2186
2231
2318
2414
258
2696
27470
282
2937
30245
318
326
3337
342
3520
36137
373
3819
3924
4063
4110
4299
4352
4432
4516
46638
4715
4820
4961
5045
51288
5243
5352
5412
55371
56123
5794
588
59483
6011

[1,1,1,61,13,7,1,25,109,41,60,1,5,24,18,6,3,7,38,
 12,86,31,18,14,8,96,470,2,37,245,8,6,37,2,20,137,
 3,19,24,63,10,99,52,32,16,638,15,20,61,45,288,43,
 52,12,371,123,94,8,483,11]