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A378498 as a simple table

na(n)
11
24
39
4100
5121
6225
7400
8484
9676
10900
1110000
1211881
1340000
1444944
1569696
1690000
17111556
18202500
19220900
20225625
21232324
22261121
23265225
24300304
25442225
26444889
27695556
281000000
291002001
301020100
311210000
322250000
332295225
344000000
354008004
364080400
374840000
385112121
396760000
408008900
419000000

[1,4,9,100,121,225,400,484,676,900,10000,11881,
 40000,44944,69696,90000,111556,202500,220900,
 225625,232324,261121,265225,300304,442225,444889,
 695556,1000000,1002001,1020100,1210000,2250000,
 2295225,4000000,4008004,4080400,4840000,5112121,
 6760000,8008900,9000000]