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A156459 as a simple table

n a(n)
2 2
3 0
4 28
5 12
6 1412
7 3096
8 337208
9 4171320
10 662224128
11 16504055920
12 4410398887272
13 150978985010061
14 66490911199244672

[2,0,28,12,1412,3096,337208,4171320,662224128,
 16504055920,4410398887272,150978985010061,
 66490911199244672]

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Last modified April 23 03:30 EDT 2024. Contains 371906 sequences. (Running on oeis4.)