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A070781 as a simple table

n a(n)
0 1
1 4
2 126
3 11440
4 2042975
5 600805296
6 262596783764
7 159518999862720
8 128447994798305325
9 132341572939212267400
10 169758547725351091518726
11 265242021590899282966358400
12 495874093230232452749553398586
13 1092844289151775603486607296657120

[1,4,126,11440,2042975,600805296,262596783764,
 159518999862720,128447994798305325,
 132341572939212267400,169758547725351091518726,
 265242021590899282966358400,
 495874093230232452749553398586,
 1092844289151775603486607296657120]

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Last modified August 4 09:55 EDT 2021. Contains 346446 sequences. (Running on oeis4.)