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A135396 as a simple table

n a(n)
1 1
2 1
3 2
4 12
5 24
6 17280
7 720
8 87091200
9 29030400
10 1755758592000
11 3628800
12 1525930675524002119680000000
13 479001600
14 15033074749223731200000
15 151533393472175210496000000
16 2201737050440244933006930739200000000 

[1,1,2,12,24,17280,720,87091200,29030400,
 1755758592000,3628800,
 1525930675524002119680000000,479001600,
 15033074749223731200000,
 151533393472175210496000000,
 2201737050440244933006930739200000000]

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Last modified May 26 23:01 EDT 2024. Contains 372847 sequences. (Running on oeis4.)