login

A028315 as a simple table

na(n)
01
11
21
31
45
51
61
71
81
97
107
111
121
1319
1419
151
161
179
1827
1927
209
211
221
2365
2465
251
261
2711
28101
29101
3011
311
321
3357
34147
35231
36231
37147
3857
391
401
4113
4269
4369
4413
451
461
47273
48273
491
501
5115
52355
53855
54855
55355
5615
571
581
59111
60451
612277
622277
63451
64111
651
661
6717
68127
691661
703487
715379
725379
733487
741661
75127
7617
771

[1,1,1,1,5,1,1,1,1,7,7,1,1,19,19,1,1,9,27,27,9,1,
 1,65,65,1,1,11,101,101,11,1,1,57,147,231,231,147,
 57,1,1,13,69,69,13,1,1,273,273,1,1,15,355,855,855,
 355,15,1,1,111,451,2277,2277,451,111,1,1,17,127,
 1661,3487,5379,5379,3487,1661,127,17,1]