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A074351 as a simple table

n a(n)
1 1
2 1
3 2
4 6
5 24
6 240
7 720
8 5040
9 40320
10 514080
11 3628800
12 80166240
13 479001600
14 6797831040
15 93774320640
16 1307674368000
17 20922789888000
18 523845011289600
19 6402373705728000
20 153101632051630080
21 2471368711740364800
22 51182316789956352000
23 1124000727777607680000

[1,1,2,6,24,240,720,5040,40320,514080,3628800,
 80166240,479001600,6797831040,93774320640,
 1307674368000,20922789888000,523845011289600,
 6402373705728000,153101632051630080,
 2471368711740364800,51182316789956352000,
 1124000727777607680000]

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Last modified May 15 06:57 EDT 2024. Contains 372538 sequences. (Running on oeis4.)