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A195189 as a simple table

n a(n)
0 2
1 24
2 72
3 2880
4 800
5 362880
6 169344
7 29030400
8 9331200
9 4790016000
10 8673280
11 31384184832000
12 6181733376000
13 439378587648000
14 10346434560000
15 512189896458240000
16 265423814656
17 14148260909088768000
18 2076423318208512000
19 96342919523794944000000
20 74538995631567667200000

[2,24,72,2880,800,362880,169344,29030400,9331200,
 4790016000,8673280,31384184832000,6181733376000,
 439378587648000,10346434560000,512189896458240000,
 265423814656,14148260909088768000,
 2076423318208512000,96342919523794944000000,
 74538995631567667200000]

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Last modified March 28 20:05 EDT 2024. Contains 371254 sequences. (Running on oeis4.)