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A152644 as a simple table

n a(n)
1 1
2 2
3 6
4 24
5 120
6 720
7 5040
8 40320
9 343680
10 3210336
11 32428512
12 359501856
13 4409024192
14 56394389456
15 777561149096
16 11557514999280

[1,2,6,24,120,720,5040,40320,343680,3210336,
 32428512,359501856,4409024192,56394389456,
 777561149096,11557514999280]

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Last modified September 26 07:41 EDT 2021. Contains 347664 sequences. (Running on oeis4.)