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A233409 as a simple table

na(n)
14
216
336
4144
5196
6256
7400
8484
9900
101156
111296
121600
131764
142704
152916
163136
173364
183600
194356
205184
216084
227056
237396
247744
258100
268464
278836
289216
2910404
3010816
3111236
3211664
3312100
3412544
3512996
3616384
3716900
3819044
3919600
4020164
4120736
4222500

[4,16,36,144,196,256,400,484,900,1156,1296,1600,
 1764,2704,2916,3136,3364,3600,4356,5184,6084,7056,
 7396,7744,8100,8464,8836,9216,10404,10816,11236,
 11664,12100,12544,12996,16384,16900,19044,19600,
 20164,20736,22500]