login

A322107 as a simple table

na(n)
31
41
59
61
71
81
949
101
111
121
1349
141
151
161
171369
18121
199801
201
2149
221
231
241
251521
261
275329
281
295929
301
313844
321

[1,1,9,1,1,1,49,1,1,1,49,1,1,1,1369,121,9801,1,49,
 1,1,1,1521,1,5329,1,5929,1,3844,1]