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A023194 as a simple table

na(n)
12
24
39
416
525
664
7289
8729
91681
102401
113481
124096
135041
147921
1510201
1615625
1717161
1827889
1928561
2029929
2165536
2283521
2385849
24146689
25262144
26279841
27458329
28491401
29531441
30552049
31579121
32597529
33683929
34703921
35707281
36734449
37829921
381190281

[2,4,9,16,25,64,289,729,1681,2401,3481,4096,5041,
 7921,10201,15625,17161,27889,28561,29929,65536,
 83521,85849,146689,262144,279841,458329,491401,
 531441,552049,579121,597529,683929,703921,707281,
 734449,829921,1190281]