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A318250 as a simple table

n a(n)
1 1
2 5
3 20
4 126
5 624
6 6000
7 36000
8 428400
9 3669120
10 47174400
11 442713600
12 8382528000
13 81430272000
14 1556755200000
15 22666355712000
16 445916959488000
17 6067609067520000
18 161837779783680000
19 2317659281473536000
20 66418224823222272000
21 1216451004088320000000
22 31165474724742758400000

[1,5,20,126,624,6000,36000,428400,3669120,
 47174400,442713600,8382528000,81430272000,
 1556755200000,22666355712000,445916959488000,
 6067609067520000,161837779783680000,
 2317659281473536000,66418224823222272000,
 1216451004088320000000,31165474724742758400000]

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Last modified April 25 08:27 EDT 2024. Contains 371964 sequences. (Running on oeis4.)