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A112052 as a simple table

na(n)
13
27
323
449
5121
6169
7289
8361
9529
10841
11961
121369
131681
141849
152209
162809
173481
183721
194489
205041
215329
226241
236889
247921
259409
2610201
2710609
2811449
2911881
3012769
3116129
3217161
3318769
3419321
3522201
3622801
3724649
3826569
3927889
4029929

[3,7,23,49,121,169,289,361,529,841,961,1369,1681,
 1849,2209,2809,3481,3721,4489,5041,5329,6241,6889,
 7921,9409,10201,10609,11449,11881,12769,16129,
 17161,18769,19321,22201,22801,24649,26569,27889,
 29929]