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A189280 as a simple table

na(n)
11
21
31
41
54
61
71
89
99
101
111
1225
1345
1425
151
161
1764
18225
19225
2064
211
221
23169
241125
252704
261125
27169
281
291
30441
315625
3229241
3329241
345625
35441
361
371
381156
3928125
40323761
41670480
42323761
4328125
441156
451
461
473025
48140625
493553225
5015594601
5115594601
523553225

[1,1,1,1,4,1,1,9,9,1,1,25,45,25,1,1,64,225,225,64,
 1,1,169,1125,2704,1125,169,1,1,441,5625,29241,
 29241,5625,441,1,1,1156,28125,323761,670480,
 323761,28125,1156,1,1,3025,140625,3553225,
 15594601,15594601,3553225]