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A087296 as a simple table

n a(n)
1 1
2 1
3 1
4 4
5 16
6 100
7 676
8 4900
9 40000
10 362404
11 3625216
12 39904489
13 478996996

[1,1,1,4,16,100,676,4900,40000,362404,3625216,
 39904489,478996996]

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Last modified January 17 06:12 EST 2022. Contains 350378 sequences. (Running on oeis4.)