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A057004 as a simple table

na(n)
11
21
31
41
53
61
71
87
97
101
111
1215
1341
1426
151
161
1731
18235
19604
2097
211
221
2363
241361
2514120
2613753
27624
281
291
30127
317987
32334576
331712845
34504243
354163
361
371
38255
3947321
407987616
41207009649
42371515454
4324824785
4434470
451
461
47511
48281995
49191318464

[1,1,1,1,3,1,1,7,7,1,1,15,41,26,1,1,31,235,604,97,
 1,1,63,1361,14120,13753,624,1,1,127,7987,334576,
 1712845,504243,4163,1,1,255,47321,7987616,
 207009649,371515454,24824785,34470,1,1,511,281995,
 191318464]