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A330504 as a simple table

n a(n)
1 1
2 2
3 4
4 24
5 136
6 480
7 4768
8 40320
9 249856
10 4112640
11 39563008
12 319334400
13 6249389056
14 82473431040
15 1044235737088
16 20922789888000
17 355897293438976
18 4408265775513600
19 121616011523719168
20 2757288942600192000
21 31308290669925892096

[1,2,4,24,136,480,4768,40320,249856,4112640,
 39563008,319334400,6249389056,82473431040,
 1044235737088,20922789888000,355897293438976,
 4408265775513600,121616011523719168,
 2757288942600192000,31308290669925892096]

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Last modified April 25 12:15 EDT 2024. Contains 371969 sequences. (Running on oeis4.)