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A352813 as a simple table

n a(n)
0 0
1 1
2 2
3 6
4 18
5 30
6 576
7 840
8 24480
9 93696
10 800640
11 7983360
12 65318400
13 2286926400
14 13680979200
15 797369149440
16 16753029012720
17 10176199188480
18 159943859712000
19 26453863460044800
20 470500040794291200
21 20720967220237197312
22 61690805562507264000

[0,1,2,6,18,30,576,840,24480,93696,800640,7983360,
 65318400,2286926400,13680979200,797369149440,
 16753029012720,10176199188480,159943859712000,
 26453863460044800,470500040794291200,
 20720967220237197312,61690805562507264000]

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Last modified April 25 16:45 EDT 2024. Contains 371989 sequences. (Running on oeis4.)