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A257650 as a simple table

na(n)
11024
24096
35776
4240100
5540225
6960400
71500625
82160900
926357956
10688012900
11843612025
121548029025
132296038889
142353026064
152679097600
162752051600
173374448100
184300080625

[1024,4096,5776,240100,540225,960400,1500625,
 2160900,26357956,688012900,843612025,1548029025,
 2296038889,2353026064,2679097600,2752051600,
 3374448100,4300080625]