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A275779 as a simple table

n a(n)
1 2
2 20
3 584
4 69904
5 34636832
6 69810262080
7 567382630219904
8 18519084246547628288
9 2422583247133816584929792
10 1268889750375080065623288448000
11 2659754699919401766201267083003561984
12 22306191045953951743035482794815064402563072

[2,20,584,69904,34636832,69810262080,
 567382630219904,18519084246547628288,
 2422583247133816584929792,
 1268889750375080065623288448000,
 2659754699919401766201267083003561984,
 22306191045953951743035482794815064402563072]

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Last modified April 24 22:17 EDT 2024. Contains 371964 sequences. (Running on oeis4.)