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A328850 as a simple table

na(n)
10
24
316
464
5144
6196
7484
8900
91024
101444
111764
122116
132304
144624
155184
165476
176084
186724
1913924
2014400
2114884
2218496
2319044
2420164
2523104
2623716
2724964
2828224
2929584
3061504
3165536
3266564
3370756
3473984
3579524
3680656
3785264
3888804
3990000
40121104
41131044
42135424
43139876
44186624
45195364
46204304
47209764
48242064
49260100
50264196

[0,4,16,64,144,196,484,900,1024,1444,1764,2116,
 2304,4624,5184,5476,6084,6724,13924,14400,14884,
 18496,19044,20164,23104,23716,24964,28224,29584,
 61504,65536,66564,70756,73984,79524,80656,85264,
 88804,90000,121104,131044,135424,139876,186624,
 195364,204304,209764,242064,260100,264196]