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A319165 as a simple table

na(n)
19
225
327
449
581
6121
7125
8169
9243
10289
11343
12361
13441
14529
15625
16729
17841
18961
191331
201369
211521
221681
231849
242187
252197
262209
272401
282809
293125
303249
313481
323721
333969
344225
354489
364913
375041
385329
396241
406561
416859
426889
437569
447921
458281
469261
479409

[9,25,27,49,81,121,125,169,243,289,343,361,441,
 529,625,729,841,961,1331,1369,1521,1681,1849,2187,
 2197,2209,2401,2809,3125,3249,3481,3721,3969,4225,
 4489,4913,5041,5329,6241,6561,6859,6889,7569,7921,
 8281,9261,9409]