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A052612 as a simple table

n a(n)
0 0
1 2
2 2
3 12
4 24
5 240
6 720
7 10080
8 40320
9 725760
10 3628800
11 79833600
12 479001600
13 12454041600
14 87178291200
15 2615348736000
16 20922789888000
17 711374856192000
18 6402373705728000
19 243290200817664000
20 2432902008176640000
21 102181884343418880000
22 1124000727777607680000

[0,2,2,12,24,240,720,10080,40320,725760,3628800,
 79833600,479001600,12454041600,87178291200,
 2615348736000,20922789888000,711374856192000,
 6402373705728000,243290200817664000,
 2432902008176640000,102181884343418880000,
 1124000727777607680000]

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Last modified April 23 09:48 EDT 2024. Contains 371905 sequences. (Running on oeis4.)