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A329498 as a simple table

n a(n)
1 1
2 1
3 2
4 6
5 24
6 120
7 720
8 1680
9 40320
10 362880
11 725760
12 7983360
13 2128896
14 113218560
15 387459072
16 261534873600
17 836911595520
18 71137485619200
19 75322043596800
20 1621934672117760
21 37429261664256000
22 10218188434341888000
23 224800145555521536000

[1,1,2,6,24,120,720,1680,40320,362880,725760,
 7983360,2128896,113218560,387459072,261534873600,
 836911595520,71137485619200,75322043596800,
 1621934672117760,37429261664256000,
 10218188434341888000,224800145555521536000]

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Last modified August 26 14:26 EDT 2024. Contains 375456 sequences. (Running on oeis4.)