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A328521 as a simple table

n a(n)
0 1
1 2
2 4
3 12
4 24
5 48
6 240
7 720
8 5040
9 10080
10 20160
11 221760
12 665280
13 8648640
14 17297280
15 294053760
16 2205403200
17 27935107200
18 293318625600
19 1927522396800
20 8995104518400
21 26985313555200
22 782574093100800
23 24259796886124800
24 48519593772249600
25 1795224969573235200
26 8976124847866176000
27 368021118762513216000

[1,2,4,12,24,48,240,720,5040,10080,20160,221760,
 665280,8648640,17297280,294053760,2205403200,
 27935107200,293318625600,1927522396800,
 8995104518400,26985313555200,782574093100800,
 24259796886124800,48519593772249600,
 1795224969573235200,8976124847866176000,
 368021118762513216000]

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Last modified May 26 10:56 EDT 2024. Contains 372824 sequences. (Running on oeis4.)