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A232444 as a simple table

na(n)
12
24
364
4289
5729
615625
77091569
87778521
911607649
1015912121
1143546801
1256957209
13138980521
14143688169
15171845881
16210801361
17211673401
18253541929
19256224049
20275792449
21308810329
22329386201
23357172201
24408807961
25499477801
26531625249
27769341169
281073741824
291260747049

[2,4,64,289,729,15625,7091569,7778521,11607649,
 15912121,43546801,56957209,138980521,143688169,
 171845881,210801361,211673401,253541929,256224049,
 275792449,308810329,329386201,357172201,408807961,
 499477801,531625249,769341169,1073741824,
 1260747049]