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A055868 as a simple table

n a(n)
1 0
2 0
3 0
4 0
5 625
6 9072
7 153664
8 2985984
9 65610000
10 1610510000
11 43717791744
12 1301153248512
13 42150011228416
14 1476840093750000
15 55662776156160000
16 2246042996417036288
17 96619713808095645696
18 4414553991933897025584

[0,0,0,0,625,9072,153664,2985984,65610000,
 1610510000,43717791744,1301153248512,
 42150011228416,1476840093750000,55662776156160000,
 2246042996417036288,96619713808095645696,
 4414553991933897025584]

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Last modified April 25 16:45 EDT 2024. Contains 371989 sequences. (Running on oeis4.)