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A244559 as a simple table

n a(n)
1 1
2 4
3 36
4 416
5 140
6 4940
7 250160
8 160940
9 936464640
10 9364646400
11 981811366400
12 1649810013600
13 3644490406400
14 6449149644811400
15 1904936491693664000
16 408144496481646464000
17 925253664491646408136000
18 36160494994902549464000
19 141361625100160646494000

[1,4,36,416,140,4940,250160,160940,936464640,
 9364646400,981811366400,1649810013600,
 3644490406400,6449149644811400,
 1904936491693664000,408144496481646464000,
 925253664491646408136000,36160494994902549464000,
 141361625100160646494000]

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Last modified April 18 18:58 EDT 2024. Contains 371781 sequences. (Running on oeis4.)