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A250029 as a simple table

n a(n)
0 1
1 1
2 1
3 4
4 9
5 16
6 36
7 144
8 400
9 900
10 3600
11 11025
12 28224
13 78400
14 254016
15 705600
16 2286144
17 6350400
18 25401600
19 85377600
20 250905600
21 768398400
22 3073593600
23 10600761600
24 32464832400
25 129859329600
26 456536705625

[1,1,1,4,9,16,36,144,400,900,3600,11025,28224,
 78400,254016,705600,2286144,6350400,25401600,
 85377600,250905600,768398400,3073593600,
 10600761600,32464832400,129859329600,456536705625]

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Last modified April 23 01:55 EDT 2021. Contains 343198 sequences. (Running on oeis4.)