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A018884 as a simple table

n a(n)
1 1
2 4
3 9
4 16
5 25
6 36
7 49
8 64
9 81
10 121
11 144
12 225
13 441
14 484
15 676
16 1444
17 7744
18 11881
19 29929
20 44944
21 55225
22 69696
23 9696996
24 6661661161

[1,4,9,16,25,36,49,64,81,121,144,225,441,484,676,
 1444,7744,11881,29929,44944,55225,69696,9696996,
 6661661161]

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Last modified March 2 08:39 EST 2021. Contains 341745 sequences. (Running on oeis4.)